1. Assume that air resistance is proportional to speed. A parachutist falls from rest. If he did not open hisparachute, he would reach a terminal velocity of 90 m/s. With an open parachute, he reaches a terminalvelocity of 10 m/s. He opens his parachute 20 s after he started falling. Calculate (a) The distance alreadyfallen at the moment when he opens his parachute; (b) The total distance fallen 40 s after he started falling.

Given Data:Air resistance is proportional to the speed of the speed of the parachutist.The initial…

Answered: 1. Assume that air resistance is…

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