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While pacing in the hallway at a constant velocity, you drop a tennis ball so that it falls towards the floor. You catch the rebounding tennis ball 1.1s later. Assume that the tennis ball undergoes an elastic collision with the floor, and that you catch the ball at the same height from which it was dropped.

A) calculate the height above the floor from which the tennis ball is released.

B) counting the tiles on the floor, you calculate that you have walked 1.7 meters when you catch the tennis ball. Calculate how fast you are pacing.

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Category:- Physics
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