Suppose that an object ,ri3 -a-dptkw travels from one point in space to another. Make a comparison between the displacement and the distance traveled.ia-3 dw-pkr,t

  When is the average velocity of an object equal to the inst3cqb+ba 7:lw bantaneous velocity?

  A new car manufacturer advertises that l1*bws:8ya/nq4,yy0gqne w ytheir car can go "from zero to sixty in 8 8lg:qw/4n1 wn,yebyys* aqy 0s". This is a description of

  An object moving in the1udxf . yyr- z,3lte;f +x axis experiences an acceleration of $2.0 \; m/s^2$. This means the object is

  Suppose that a car traveling to the East (+x direction) begin au9(8r9pbr ays to slow down as it approacuya8rp 9r( 9abhes a traffic light. Make a statement concerning its acceleration.

  Suppose that a car traveling to the d) j8p x6 1mcy7nxuv)amrv)p 0West (-x direction) begins to slow down as it approaches a traffic d)acv0)pxm 8 v6ypnjxmu) 1r7light. Make a statement concerning its acceleration.

  Suppose that an object is movit rns7hmd981c ng with a constant velocity. Make a statement concerning its acceleration.8sr7 91mthdcn

  If the velocity of an object isi:(3qjlzf du 9 zero, does it mean that the acceleration is zero? Suppod3 jqzi9 ul:f(rt your answer with an example.

  Can an object's velocity change direction when its a167d +/mirs k5by l9zdt7ntzqcceleration is constant? Support your answer with an e ysl dti7t mz95/bnq r16d+k7zxample.

  Suppose that an object is moving wit/jl cfqda4 +6)seaj4on rv )*gh constant acceleration. Make a statement concerning its motioj6 drv4)+qnec j*f )/saol ag4n with respect to time.

  Can an object have increasing speed while its acceleration is decreasing?) zwyv82ti-g l Support yoz8 tyg)l v2-wiur answer with an example.

  Suppose a can, after an initial kick, moves up along a smooth hill of icey d2uacqxm4pr1 6: e,y. Make a statement coy: pyc,6qxdr2 4eau1mncerning its acceleration.

  Under what condition is average velocity equal to the average of the obje* qc;wq -0rwey9jqx kzy)42edct's ini9w;yqee*y)xw dk2- rzq q4 c0jtial and final velocity?

  Objects A and B both start at rest. The042(g mtf bzvry both accelerate at the same rate. However, g(t0zb v 24rmfobject A accelerates for twice the time as object B. What is the final speed of object A compared to that of object B?

  Objects A and B both start from rest. Them1my1msc v*tf 9ww5f+ y both accelerate at the same rate. However, object A accelerates for twice the time as object B. Wm1* t mvs+1m5ff 9wywchat is the distance traveled by object A compared to that of object B?

  When an object is released from rest al)7dm -15qw kk cbtk77d. teoond falls in the absence of friction, which of the following is true concerning its motkttcb-le1mk qo7dod w)k7. 5 7ion?

  When an object is released from rest and falls in the absence of fril3v81ouu,vwu1 dp qh,ction, which of the following is true 1du3,wovlhq1 ,puu 8vconcerning its motion?

  Suppose a ball is thrown straight up. Make a statement about the velocity a . *gv aeo; uq 7xyn*vwz/0sj1a7hud(dnd the acceleration when the ball reaches the 1 (va.hv/ 0n7uzxqjaw *duds*o 7 ;ygehighest point.

  Suppose a ball is thrown straight up. What is its m)paae-y ; l5egr62g eacceleration just before it reaches itsga6 )ylm5gaeerpe-; 2 highest point?

  Suppose a ball is thrown straight up, reaches a maximum hei1 ud6n 2lb0cdyrvb7x0uf l/xv -pzo0.ght, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as tx vor00bfp.y1c6uu /l2d- 7zd lbn0 vxhe ball is going up.

  A ball is thrown straight up, reaches a mayb2 c/ n vk8xjdybe7.- ay)x7gximum height, then falls to its initial height. Make a statement about the direction of the vej 2b e vc.y/agdynk8yxb7- 7x)locity and acceleration as the ball is coming down.

  Suppose a ball is thrown downward in the a..xstsu6xm -cmv 3 3jbbsence of air resistance. Make a statement concern3tm vj bx6.u3sscm.- xing its acceleration.

  Suppose a skydiver jumps from a high-flying plane. What is her acceleratyfe tlcm+tdx1s s8ab/q6-t- wo1fl.0 ion when she she reaches terminal velocity16xt atlqm.s f/+c-tesb 01fld8oyw-?

  A ball is thrown vertically upward wi/t9*i*dti cllvmwztbq -v1ul7*yo ,,th a speed v. An identical second ball is thrown upward with a speed 2v (twice as fast). What is the ratio of the maximum height of the second ball to that of the first ball? (How many times higher does the secoci,*u mq*1 t by 7t-*o9/,lv idwtzvllnd ball go than the first ball?)

  Ball A is dropped from the rd cps -;/ tr wu+pyg8r.8ggp9top of a building. One second later, ball B is dropped from the same building. rw8r p 8p9+s;ctgr.gygd u/ p- As time progresses, the distance between them

  Ball A is dropped from the top;c0ks ad4a+fqp(*kilj,u y o+0f ndu3 of a building. One second later, ball B is dropped from the same building. As time progressi0al* +qcd;uf s( j03f yu,+n pdokk4aes, the difference in their speeds

  Two objects are thrown from the top of a tall buildiexqhj8 f.rpz1 kx +z2,ng. One is thrown up, and the other is thrown down, both with the same initiax28zxkzf1pr e,.hj+ ql speed. What are their speeds when they hit the street?

  A brick is dropped from the top of a building. A second brick is thro 1mj6-nzqa. -kmu s3i1xsv0nswn straight down from the same building. They are released at the same time. Neglect air resistance. Compare the acceleratiov- 01m xi snsaqs1m36.jzk-unns of the two bricks.

  An object is moving with constant non-zero- fq0e-ys(yaz crl3 loo y*u6. velocity in the +x axis. The position versus time graph of this object iyor.sa- uoy l3y(*c -f06lqezs

  An object is moving with constant non-zero acceleration in the +x axis. Thec7gc/j 9sxo1 4bryvvnu3(v ,k position 3skv(bjovrvu n/17 g9cc, 4yxversus time graph of this object is

  An object is moving with constant non-zero velocity in the 4jx6e o78 cce1z jcbw;+x axis. The velocity versus time gc; eejc w14zj6xbco78 raph of this object is

  An object is moving with constant non-zero acceleration in the +x axis. The fxnh. gga *vw4h6vsz8oa3 d* 9velocity versus time graph of this 938*6zax*gv4vd.hh n s oa fgwobject is

  The slope of a position versus time fmra ,cuw;jb/ l*/n- v8mnz:tgraph gives

  The slope of a velocity versu(j:rc -p8qf2msb9c7 nq *b jqos time graph gives

  The area under a curve in a png+pf,(rgww hqu; 6,n acceleration versus time graph gives

  The area under a curve in a velocity versus timk8ncl7* r)rrl e graph gives

  If the position versus time graph of an object z9akvv 3x03wy14ih gl is a horizontal line, the object is va kz3gvw9413xih ly0

  If the position versus time graph of az3:5fjgeo l-g- /ip5g wup* lzn object is a vertical line, the object is-fo*i-wz 5e lzl pj5:u/p3ggg

  If the velocity versus time graph of an objectmn8(ft m*uam* 23/n dcut bwk4 is a horizontal line, the object 2 /n*muu3t mt*cbk(nmf a84wdis

  If the velocity versus time graph of an er wtt;,zy/ 0aobject is a straight line making an angle of 30 degrees with the time axis, thet,z0r;/ty eaw object is

  An object moves 15.0 m north and then 11.0 m south. Find both the iyy vm:zybhfo8 x:gy(g8i7)(distance traveled and the magnitude of the displacement vectom8y7 g vi(y:):y( gxfbi8y hozr.

  A boat can move at 30 km/h in still water. How long will it take to moss +;++i3n ss)bj,dsw dlkgq+ve 12 km upstream in a river flow ss3k ,);j d+sb ++g+qdsinwlsing 6.0 km/h?

  55 mi/h is how many m/s? (1 mi = 1609 m)..) d ewby)8/blw af fupd 1cc/d5egv:

  What must be your average speed in order to travel 3a)-s6xyd kjsp-o2n o :+ujdq4 50 km in 5.15 h?

  A runner ran the marathon (approximately 42.0 km) in 2 hours and 57 7f;1508mbmfhwi-9op yv+na 9ay t5nnue rtb)min. What is the average yh -9nay8bw+n15i 7 5;m9preba tn0 f)votfumspeed of the runner in m/s?

  A car travels 90 km/h. How long does it take for it to l2eo *muxx ny0 h*h+;5i/zdpv travel 400 km?

  A ly (light year) is the distance that light travels in one year. The sphjb88s i,c8r7sakm+b( bm3a -hl5 8nwnz p 7hceed of ligh c5+-m,nk (8 rwjmscnhi77b hsl88ha3a8 bpbzt is $3.00 \times 10^8 \; m/s$. How many miles are there in a light year? (1 mi = 1609 m, 1 yr = 365 d.)

  If you are driving 72 km/h along a straight road and you look gjj36y.::a 0:tf jmkf mg .xpxto the side for 4.0 s, how far do you travel during this inatg..ypf j fka:j:6jmx tm3:g0xtentive period?

  If you run a complete lbe1w dz:/6yqu+ cmy g/oop around an outdoor track (400 m), in 100 s, your averaz6/gqw e/ +y1:bduc ymge velocity is

  A polar bear starts at the North Pole. It travels 1.0 km south, thei 26zwvh8yl6c wm qe-/jn a1yqg28by)n 1.0 km east, then 1.0 km north, then 1.0 km west to return to its starting point. This trip takes 45 min. What was the bear's ayz by hmjg cn2 w/w-8aqviy626l8e1)qverage speed?

  A polar bear starts at the North Pole. It travels 1.0 km sou kpmzon7d)iqr2zh0+2th, then 1.0 km east, then 1.0 km north, then 1.0 km west to return to in )omzzpr027+2 ihdk qts starting point. This trip takes 45 min. What was the bear's average velocity?

  You are driving home on a weekend fru:fksf2 :hx; xom school at 55 mi/h for 110 miles. It then starts to snow and you slow to 35 mi/h. You arrive home after driving 4 hours and 15 minutes. How far is youu2 :xff:sxk;h r hometown from school?

  A motorist travels 160 km at 80 km/h and 160 km at 100 kmlk+ y.y+k 7 3fitcko.h/h. What is the average speed of thy7+ ko.ck lt+f hk3.yie motorist for this trip?

  A motorist travels for 3.0 po9pc.0(kx zlh :z9q ah at 80 km/h and 2.0 h at 100 km/h. What is her average speed fo.0x kzp(z a99oqp:lchr the trip?

  An airplane travels at 300 mi/h sou vxxr5t6p 4f6wo.vb v1th for 2.00 h and then at 250 mi/h north for 750 miles. What is the average spetrxvpxw 6v.15o6fvb4 ed for the trip?

  In a 400-m relay race the anch+9gbqp hh /f:oorman (the person who runs the last 100 m) for team A can run 100 m in 9.8 s. His rival, the anchorman for team B, can cover 100 m in 10.1 s. What is the largest lead the team B runner can have when the team A runner starts the final leg of the race, in order that the team A ruph9h o:qbfg/+ nner not lose the race?

  A car decelerates unifq 9*pld k(wty,5gnhf 4ormly and comes to a stop after 11 s. The car's average velocity during decynt5hdlp4gw(,k 9f* q eleration was 55 km/h. What was the car's deceleration while slowing down?

  An airplane increases . d lllz(dnw(2its speed from 100 m/s to 160 m/s, at the average rate of dw(lndzl .2(l $15 \; m/s^2$. How much time does it take for the complete increase in speed?

  A car traveling 60 km/h accelerates at the rate heu1o* i1lc,fof $2.0 \; m/s^2$. How much time is required for the car to reach a speed of 90 km/h?

  A cart starts from res0yiycjr 6b (0 9/ofsrut and accelerates at $4.0 \; m/s^2$ for 5.0 s, then maintain that velocity for 10 s, and then decelerates at the rate of $2.0 \; m/s^2$ for 4.0 s. What is the final speed of the car?

  A car travels at 15 m/s for 10 s. It then speeds up with a constant aek-zrffz .2a-cceleration ofk.-fze-2 frza $2.0 \; m/s^2$ for 15 s. At the end of this time, what is its velocity?

  A cart with an initial velocit0m:i nr+rft9-eem c) 1w*,.qi woxiiz y of 6.0 m/s experiences a constant acceleration of nf,r mm*.0rw)ic9+:wz ioeq-1 eiitx$1.4 \; m/s^2$. What is the cart's displacement during the first 4.0 s of its motion?

  A bullet moving horizontally to the rirl hy,qy)0 js2ght (+x direction) with a speed of 268 m/s strikes a sandbag and penetrates a yl s,2 rj)q0yhdistance of 87.02 cm. What is the average acceleration, in $m/s^2$, of the bullet?

  A jet fighter plane is launched from a catapult on an air nq5y8iv6w(cocraft carrier. It reaches a speed of 42 m/s at the end of the catapult, and this req8i5o vcywn 6(quires 2.0 s. Assuming the acceleration is constant, what is the length of the catapult?

  A car starting from rest moves with constant acceleratio+7,h ng.p02kzb+i ozlmg0zy fn of $2.0 \; m/s^2$ for 10 s, then travels with constant speed for another 10 s, and then finally slows to a stop with constant acceleration of
-$2.0 \; m/s^2$. How far does it travel?

  A car goes from 40 m/s to 80 m/s in a distance of 200 m. What is its av zqf ao.(fi3, 1f. (c0ponxbbverage accel.b((xcf fz. aibno,of1vq03peration?

  An object starts from rest and undergoes s-ui+l h-4)jhu0 rvl buniform acceleration. During the first second it travels 5.1 m. How far will it travel during thsuhhj-b-v lri+ 4)l u0e third second?

  An object is moving in a straight line with const :c/ 2t0s)kuqf tkwlu3ant acceleration. Initially it is traveling at 16 m/s. Three seconds later it is travels 0 tkk f)wl3/:2uutqcing at 10 m/s. How far does it move during this time?

  A car starts from rest and accelerates unifvbezb q ); /ax4.spf0+zor s1zormly at $3.0 \; m/s^2$. A second car starts from rest 6.0 s later at the same point and accelerates uniformly at $5.0 \; m/s^2$. How long does it take the second car to overtake the first car?

  A car with good tires onw r2 ug(y6p r,-rcobh+ a dry road can decelerate at about $5.0 \; m/s^2$ when braking. Suppose a car is initially traveling at 55 mi/h.
(a.) How much time does it take the car to stop?    $s$ (only input numerical values)
(b.) What is the stopping distance?    $m$ ((only input numerical values)

  At the instant a traffic light turns green, a car that has beencyuvga2oio/7 y e3;4 eo flno+9,js(y waiting at the intersection starts ahead with a constant acceler 7/ya;gvnyo+94o3leij cso y(ueof, 2ation of $2.00 \; m/s^2$. At that moment a truck traveling with a constant velocity of 15.0 m/s overtakes and passes the car.
(a.) Calculate the time necessary for the car to reach the truck.    $s$ (only fill in numerical values)
(b.) Calculate the distance beyond the traffic light that the car will pass the truck.    $m$ (only fill in numerical values)
(c.) Determine the speed of the car when it passes the truck.    $m/s$ (only fill in numerical values)

  An object is thrown upward with a speed of 12 m/s on the surface u /ia8lt1l9wsplae 3.of planet X whe3wl9l.8 us1aape ti/l re the acceleration due to gravity is $1.5 \; m/s^2$. What is the maximum height reached by the object?

  An object is thrown upward with a speed of 12 m/s on the surface of 1/ mx;arggeus )66v yyplanet X where thav g6 ;xyurmy 6/)s1ege acceleration due to gravity is $1.5 \; m/s^2$. How long does it take for the object to reach the maximum height?

  An object is thrown upward with a speed of 15 m/s on the surface of pladnp+9 k b( s.ux5 p-h0od c5dr+ckers2net X where the accelero50-p hucdkp rdsknb x2d+ 9ec.+5s(ration due to gravity is $2.5 \; m/s^2$. How long does it take for the object to return to where it is thrown?

  An object is thrown upward with a speed of 14 m/s on the surface of planet X wgt/l7m*czh/ vn( (sr mhere the acceleration due to gravi( vh*tmn/c s 7(m/grzlty is $3.5 \; m/s^2$. What is the speed of the object after 8.0 s?

  Human reaction time is usually /;eqkx 05die mgreater than 0.10 s. If your friend holds a ruler between your finge;0/mxeqdik e 5rs and releases it without warning, how far can you expect the ruler to fall before you catch it?

  A ball is thrown upward at a velocity of 19.6 m/s. What is its velocity )s x2 aah+ vzt)ix)5noafter 3.00 vh)nxiaaxt )5zs +)o2 s?

  A bullet shot straight u4u 9hb g,x;jfvp returns to its starting point in 6 s. What is the ini4jvfh bg;u,9x tial speed of the bullet?

  A ball is thrown straight up with a spe8s-ab ipo:(5cys wxz96r k-xj ed of 36.0 m/s. How long does it take to return to its startin c -x9ssywj5-8bz (pkio:x6 rag point?

  A ball is thrown downward jqxc;,mg y, pyjuv 7ti(-:sc5from the top of a building with an initial speed of 23 m/s. It strikes the ground after 6.cx - , m5t(ijc ugqvs,:pjyy;78 s. How high is the building?

  A ball is thrown straight jt657tn f 0ghwbzo zov2)2,yu up with a speed of 30 m/s. (only fill in numerical value in the blank5o 0thv2o)6jnyz 7 2f,zb ugtws)
(a.) How long does it take the ball to reach the maximum height?    $s$
(b.) What is the maximum height reached by the ball?    $m$
(c.) What is its speed after 4.2 s?    $m/s$

  A foul ball is hit straighthn0e2on,sstn7 q (pt3 up into the air with a speed of 46.1 m/s. (use $g=10 \; m/s^2$, only fill in numerical value in the blank)
(a.) Calculate the time required for the ball to rise to its maximum height.  (数值)  $s$
(b.) Calculate the time for the ball to fall back to the height at which it was hit.  (数值)  $s$
(c.) Calculate the maximum height reached by the ball.  (数值)  $m$
(d.) Calculate the ball's speed 3 seconds later.  (数值)  $m/s$
(e.) Determine the time at which the ball pass a point 12 m above the point of contact between the bat and ball for the first time.  (数值)  $s$
(f.) Determine the time at which the ball pass a point 12.0 m above the point of contact a second time.  (数值)  $s$

  In Fig. below, what is the velocity ad ybq9nvfc0 5211ot2e hdm4vut t = 1.0 s?

  In Fig. below, what is the ve) 8v0ppp ahe4glkq /ztqo2 d)*locity at t = 2.5 s?

  In Fig. below, what is the velon,m6 : qkffg 5ve0lmdxz8 :1av6tw4vgcity at t = 4.0 s?

  In Fig. below, what is the velocity a7vm/lpz,52rwfi: jf* llko xzh ;3.evt t = 5.5 s?

  In Fig. below, what is the avab q3q:uem3j /erage velocity from 0 to 4.0 s?

  In Fig. below, what is the average velocity bdjgy,,vxg m2 p qhr5.zw2p)1 from 0 to 6.0 s?

  In Fig. below, what is the acceleration at 1.0 s+ wzvii yz ijz,)3s;l.?

  In Fig. below, what is t-6kef(rh ju c8he acceleration at 3.0 s?

  In Fig. below, what is the average acceleraqlisr6k/6x m v b78h(dtion from 0 to 5.0 s?

  In Fig. below, what is the average accelnym( .f5n3dz seration from 0 to 8.0 s?

  In Fig. below, what is the displacement fro*3q 4 jjqquy:bm 0 to 8.0 s?

Does a car speedometer measurett*vs.z4 :ci i speed, velocity? {speed|velocity}

  An object can have a varying speed if its velocity e am pvklhz:r5- 8sk.9is constant.

  The velocity of an object can be negative when its acceleration is(5gwbx, kzt i, positive.

  If one object has a greater speed than a second object, th6yrzn:opo cv32bi 1euai no7 )q94(t te first must have a greatero z3c:a )bny6o 21p7i 4oiq(n9evtrtu acceleration.

  Two cars emerge side by side from a tunnel. Car A is t9)wtaf3m ,e1s04kxtv gfmf/ uraveling with a speed of $60 \; km/h$ and has an acceleration of $40 \; km/h/min$ Car B has a speed of $40 \; km/h$ and has an acceleration of $60 \; km/h/min$ . Can A will pass car B at the instant they come out of the tunnel.

  An object can be increasing in speed as its accwo7 g8 r k9s. -vvboy0vdg,ma80d/srj eleration decreases.

  A baseball player hits a foul ball straight up into the air. It leavesz ) ;gjjq(l96fpo (lcw the bat with a speej 9)pzlfg;( ljo(qcw6d of $120 \; km/h$. In the absence of air resistance, how fast will the ball be traveling when the catcher catches it?    $km/h$ (please only fill in numerical value in the blank)

  As a freely falling object speeds up, what is had -8zecexvo10jx:u7t ppening to its acceleration, how does it change if air friction t:c8e oezxvx7d01 -ju is ignored?

  As a freely falling object speeds up,.cn/*g)ztq- ixfn em-4nns-bp p44on what is happening to its acceleration, how does it change if air friction CAN NOT o nz f 4pgsennb-/-t4i.c-np qx4 m*n)be ignored?

  An object that is thrown vertically upward will r 7 7h e:xrjgeqsa)z3h.k 9ovjprtd- -a0 it;;weturn to its original position with the same speed as it had initially if air r-0 a) 9;so : 3ratekd7her 7jtz.wxihp -v;jgqesistance is negligible. If air resistance is appreciable, how will this result be altered?

  An object can have zero velocity and nonzero acceleratn5 jsndmolx a292 mahz nk8252ion at the same time.

  An object can have nonzero velocity and zero acceleration at th vf+nx02p/pwf e same time.

  An elevator moving fkkq u 1k.viw1n qcmocf/v/tm04f3j7;g y.*t xrom the second floor to the fifth floor making no stops along the way has zero acce tf/qmct1vm7qgwv .3 1u*xkj yci./k;40 knof leration all the time.

  A rolling ball moves f54yau*sv a0d8 if/j (xe+vdc 7qt(tjzrom $x_1=2.2 \mathrm{~cm}$ to $x_2=-7.8 \mathrm{~cm}$ during the time from $t_1=2.0 \mathrm{~s}$ to $t_2=5.5 \mathrm{~s}$. What is its average velocity?  (数值)  $cm/s$ (only fill in numerical value please)

  A particle at $t_1=-4.1 \mathrm{~s}$ is at $x_1=3.2 \mathrm{~cm}$ and at $t_2=4.3 \mathrm{~s}$ is at $x_2=8.5 \mathrm{~cm}$. What is its average velocity?  (数值)  $cm/s$

  A person jogs eight complete laps aroun+(phbey ei7w8 d a quarter-mile ($1 \; mile = 1609 \; m$) track in a total time of 9.7 min. Calculate (a) the average speed  (数值)  $m/s$ and (b) the average velocity    $m/s$

  A horse canters away from its trainpf4fu ;hiyvr :s1 z0)yer in a straight line, moving 104 m away in 13.6 s. It then turns abruptly and gallops halfway back in 4.7 s. Calculate (a) its average speeduffy:vi)z 10;ph4ysr  (数值)  $m/s$ and (b) its average velocity  (数值)  $m/s$ for the entire trip, using “away from the trainer” as the positive direction.

  A car accelerates fromy4lv,a0)t9y; anulhe z5k +kk $13 \; m/s$ to $22 \; m/s$ in 5.4 s. What was its acceleration?  (数值)  $m/s^2$ How far did it travel in this time?  (数值)  $m$ Assume constant acceleration.

  A car slows down fromf23(u.3r8n+ e4w 7nilcm ct5ja jpgtj $15 \; m/s$ to rest in a distance of 66 m. What was its acceleration, assumed constant?  (数值)  $m/s^2$

  A light plane must reach a speed ofhdf uff*1;u 3uzlf-x8z2la 7v $30 \; m/s$ for takeoff. How long a runway is needed if the (constant) acceleration is $2.3 \; m/s^2$ ?  (数值)  $m$

  A world-class sprinter can burst out of the blocks to e - oen4llrlnoup3 k2.;ssentially top speed about o4r o- u ne;.lp3ln2kl$10.5 \; m/s$ in the first 14.1 m of the race. What is the average acceleration of this sprinter?  (数值)  $m/s^2$ and how long does it take her to reach that speed?  (数值)  $s$

  A car slows down unifo;ucum7-knv 8 armly from a speed of $16 \; m/s$ to rest in 4.63 s. How far did it travel in that time?  (数值)  $m$

  In coming to a stop, a car leav34ilz ,v5oe fees skid marks 92 m long on the highway. Assuming a decelera34fevi, el o5ztion of $7.00 \; m/s^2$, estimate the speed of the car just before braking.    $m/s$