Friday
April 18, 2014

Homework Help: physics

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 ballís 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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