[填空题]
A person jumps from a fourth-story window 15.0 m above a firefig6 khf vz2s-m8ohter’s safety ne2vo-hf6ms zk 8g*zu:j:e-z l38p trs9 z 3rdr*iaf*ru t. The survivor stretches the net 1.0 m be3p:z3* r j*9saru:zdgr r8z-tfelui*fore coming to rest, Fig. 2–37.
(a) What was the average deceleration experienced by the survivor when she was slowed to rest by the net? $m/s^2$
(b) What would you do to make it “safer” (that is, to generate a smaller deceleration): would you stiffen or loosen the net? Explain.
