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A girl throws a ball straight up into the air with the initial velocity v0 =...


A girl throws a ball straight up into the air with the initial velocity v0 = 18.0 m/s. At a certain point, the ball falls back into the girl's hands.

a) What is the highest height the ball will reach?

b) How long is the ball in the open air?

c) What is the velocity of the ball just before it hits again?

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