A soft tennis ball is dropped onto a hard floor from a height of 1.60m and rebounds to a height of 1.22m. (Assume

that the positive direction is upward.)

(a) Calculate its velocity just before it strikes the floor.

(b) Calculate its velocity just after it leaves the floor on its way back up.

(c) Calculate its acceleration during contact with the floor if that contact lasts 3.50 ms.

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