A 145-g softball fell from a tree 20.0 m above the ground.
1) If air resistance can be ignored, what is the speed of the
ball as soon as it hits the ground?
2) If the ball actually hit the ground at a speed of 15.0 m/s,
what is the average air resistance that worked?
A 145-g softball fell from a tree 20.0 m above the ground. 1) If air resistance can be ignored, what is the speed of the
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A 145-g softball fell from a tree 20.0 m above the ground. 1) If air resistance can be ignored, what is the speed of the
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