[填空题]
An airplane pilot fell 370 m after jumping fro 9+v43w3wv lo9ijy8z +l wbbatm an aircraft witho*yr(y k2 p2*1pcxbrpcdnhv77 ut his parachute opening. He landed in a snowbank, cre(*yp7x c*p k22v 1bndrchy r7pating a crater 1.1 m deep, but survived with only minor injuries. Assuming the pilot’s mass was 78 kg and his terminal velocity was 35m/s estimate
(a) the work done by the snow in bringing him to rest; $\approx$ J
(b) the average force exerted on him by the snow to stop him;$\approx$ N
(c) the work done on him by air resistance as he fell.$\approx$ J
