wp2 A parachutist is falling with speed of 55 m/s when his parachute opens. If the air resistance -N, where w is the total weight of 25 the man and parachute, find his speed if t= 10sec. Note:Net force on system = weight of system - air resistance. O a. 25 m/s O b. 50 m/s O c. 40 m/s d. 30 m/s O e. None
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