07.14: An object moves t09zt)yoq+jt 2b qcq- mo the East across a frictionless surface with constant speed. A person then applies a constant force to the North on the object. What is the resulting path that the object takes? A. A straight line path partly Eastwar )o+9cq2b0yttm qqzj-d, partly Northward

  07.15: Two identical mass objects are launched with7oblsn+9 g w3v/,x ntz orj66u the same speed from the samejs9w/ r6n 3gu67bolvxo,+ t nz starting location. Object 1 is launched at an angle of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object returns to the starting height with the greatest speed?

  07.16: Two identical mass objects are launched wit+eec,w :x 7zavgawz54xw7 4 ybh the same speed from the same startin,x +z45yw aex4 :egcvww7a bz7g location. Object 1 is launched at an angle of $30^{\circ}$ above the horizontal while Object 2 is launched at an angle of $60^{\circ}$ above the horizontal. Ignore air resistance and consider the flight of each object from launch until it returns to the same launch height above the ground. Which object experiences the greatest change in the linear momentum?

  94.14: An arrow is aimed horizontally, directy/f 7kmjeb*q0ly at the center of a target 20 m away. The arrow hits 0.050 m belo/qb*je7y 0kfm w the center of the target. Neglecting air resistance, what was the initial speed of the arrow?

  03.05: Two arrows are launched at the same time with the same ssbx*ej w. f:f-j +p)qcpeed. A at an angle greater than 45 degrees, and arrow B at an angle less than 45 degrees. Both land at the same spot j.scj)p+fxeb: *w- qf on the ground. Which arrow arrives first?

  95.19: A baseball is thrown horizontalyba-9 len /6eg* g(ovkly from a cliff. At the same instant, a bowling ball is dropped from the same height. Assuming air resistance can be ignored, whiynk a(lg*9 gv6ob-e /ech of the following statements is correct?

  96.08: A ball is rolled off the edge of a horizontal table. The ball has iwa (/wnhnk34k;nib- 0fp2gb an initial s ;/g0-fwk3wki 4bi(nbap2hnn peed $v_0$ and lands on the floor some distance from the base of the table. Which of the following statements concerning the fall of the ball is FALSE?

  00.36: A ball is thrown vertically upward with an initial velocity v and anu*a k*/; 8do yywlj25oltz4hh initial kinetic energyl 8o/yhj4zdh2yaowk*t *l; u5 $E_k$. When the ball is half way to the top of its flight, what is its velocity and its kinetic energy respectively?

  00.37: During a recent winter storm, balb bgr;7toi 6c0es of hay had to be dropped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a constant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. As the bales are falling through the air, what will happen to their distance of sep7;b6rog cbi t0aration?

  00.38: During a recent winter storm, bales of hay had to be drm:89i f6 td (+ obympgo4tc+4dtsb8nz opped from an airplane to a herd of cattle below. Assume the airplane flew horizontally at an altitude of 180 m with a c+4 iodzf89:y b4nsc6t g (tmb+8 mpdtoonstant velocity of 50 m/s and dropped one bail of hay every two seconds. It is reasonable to assume that air resistance will be negligible for this situation. About how far apart from each other will the bales land on the ground?

  01.14: A football is kicked a distance of 50 yards down field. Neglecting air.jyar3 a58(rqz6 yb yh dp-hy/pqy5w4l3oo4r resistance, whicp-rz43dqb arlyy5 yy6h rp qw8./o 4ao3jhy5(h of the following statements would be INCORRECT when the football reaches its highest point.

  03.10: A ball is thrown into the air at an angrxi. c k ,1hbkfqn1ncb7bs7hj 9/5ag1le $\theta$ as measured from the horizontal with a velocity $v$. The horizontal velocity of the ball will be directly proportional to which of the following

  05.35: An arrow is sf+a vl/3f5mylgn .u3i-dk.dn hot horizontally toward a target 20 m away. In traveling first 5m horizontally, g.d- fmd fak+uv y5n/3lnli.3the arrow falls 0.2 m. In traveling the next 5 m horizontally it will fall a additional

  06.04: An arrow is shot from a bow dzy62 s gll 9b9ud*om2at an angle of $40^{\circ}$ from the horizontal at a speed of 24.0 m/s. Ignoring air resistance, what is the arrow’s maximum height above its launch point?

  09.20: A projectile launched from the ground landez;dpz 4* +. nf cnt4gyec-si7md a horizontal distance of 120.0 m from its launch point. The projectile was in the air for a time of 4.00 seconds. If the projectile landed atc fcd z-7y * .i4sznm;p4+tegn the same vertical position from which it was launched, what was the launch speed of the projectile? Ignore air resistance.

  13.14: A small ball is thrown at a-:t9 (m nyk v*igy5cdin angle of $30.0^{\circ}$ above the horizontal ground with a speed of 20 m/s. To what maximum height above the launch point does the ball rise during its motion? Ignore air resistance.

  13.43: A small 1.0kg mass is launched from the top oft)x:/vb gn 8sr a cliff with speed $V$ at an angle of $30.0^{\circ}$ above the horizontal. When it reaches the ground, its velocity is directed at $45.0^{\circ}$ below the horizontal. Which one of the following choices is the magnitude of the total impulse that was imparted to the mass during its flight? Ignore air resistance.

  09.09: The free fall trajectory of an object thrown hore0h(mc4v e4 ipcik5oi9 fb-8uizontally from the top of a building is shown as the dashed line in the figure. Which sets of arrows best correspond to the directions of the velocity and of the acceleration for the object at the point labeled P on the trajef u 58mb(0h-pio k4i4v ciec9ectory?

  02.41: A person throws a small object frk lgg( ;f9wq1o qv0u-bom the top of a building at an angle of 0v- w(bolq ;g1 9ukfqg$30^{\circ}$ above the horizontal. At the instant that the object returns to the same height from which it was thrown, at what rate is the speed of the object changing? Ignore air resistance and let g be the acceleration due to gravity.

  15.21: An object is launched from the ground at an angle xongsm4f2+vph85yyv/ e qwn+yo .;8 g of $60^{\circ}$ above the horizontal with a speed of 20.0 m/s. What is the magnitude of the average velocity of the object from just after launch until it reaches its highest vertical position during flight?

  16.41: A small object is launched 30° above the horizontal from a hew76 47ln8v-qt*o xyoas /hf duight of 10.0 above the ground. If the initial speed of the object is 15.0 m/s, at what angle below the horizontal is t adv-h7o4tuqfwl6s o/ y78x*n he object moving when it reaches the ground? Ignore air resistance.

  17.32: A projectile is launched at an angle ql;tg 2;l rcw6a:1yfsl( i ,y-tzz f8yof 40° above the horizontal with a speed of 30 m/s . How much time ;:-1y;trlqyt6 l(w is gl,af c2fzzy8passes before the position of the projectile makes an angle of 20° above the horizontal from the original launch point?

  14.40: A small 1.35-gram mass is launched from the top of a cliff at an ang d mg i3g8.u:dhsfu7d0le of3 0ug:d.fdd8 hmg7 sui $15.9^{\circ}$ above the horizontal. When the mass reaches the ground 4.33 seconds later, its velocity is directed at $34.4^{\circ}$ below the horizontal. What is the speed of the mass when it reaches the ground? (ignore air resistance)