Question: You throw a baseball overhead so that it bounces off the ceiling 10 meters above your hand and returns to your hand after 2.0 seconds.

You throw a baseball overhead so that it bounces off the ceiling 10 meters above your hand and returns to your hand after 2.0 seconds. What is the initial speed required for this to happen? How fast is the effect? Suppose the impact on the ceiling reverses the direction of velocity of the ball but does not change its magnitude

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