Question: At t = 0, a ball was dropped from a height of 16 feet. It hit the floor and rebounded to a height of 9

At t = 0, a ball was dropped from a height of 16 feet. It hit the floor and rebounded to a height of 9 feet Figure 4.

a. Find a two-part formula for the velocity v(t) that is valid until the ball hits the floor a second time.
b. At what two times was the ball at height 9 feet?

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