SOLUTION: A parachutist falling vertically at a constant speed of 10 m/s drops a penknife when 20 m above the ground. What is the speed of the knife just before it reaches the ground?? Show
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Question 896934: A parachutist falling vertically at a constant speed of 10 m/s drops a penknife when 20 m above the ground. What is the speed of the knife just before it reaches the ground?? Show your work please Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! There is no such thing as "falling vertically at a constant speed of 10 m/s" on Earth. There is acceleration due to gravity to deal with.
Since the penknife was also accelerating with the parachutist, the parachutist and the penknife should have the same speed when they hit the ground.
