Posted by **shay** on Sunday, January 29, 2012 at 7:08pm.

A tennis ball is thrown vertically upward with

an initial velocity of +7.5 m/s.

What will the ball’s velocity be when it

returns to its starting point? The acceleration

of gravity is 9.81 m/s

2

.

Answer in units of m/s

How long will the ball take to reach its starting

point?

Answer in units of s

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