A spaceman jumps from an airplane. After he had fallen 35 m, then his parachute opens. Now he falls with retardation of 1.8 m/s² and reaches the earth with a velocity of 2.7 m/s. What was the height of the airplane?
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Expert's answer
2020-05-03T17:17:13-0400
The speed of a spaceman after he had fallen 35 m
vi=2gh=2×9.8×35=26.2m/s
The distance traveled by spaceman when he falls with retardation
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