Posted by **margaret** on Thursday, September 15, 2011 at 4:12pm.

A ball is thrown upward. After reaching a maximum height, it continues falling back to- ward Earth. On the way down, the ball is caught at the same height at which it was thrown upward.If the time (up and down) the ball remains in the air is 2.3 s, find its speed when it caught. The acceleration of gravity is 9.8 m/s2 . Ne- glect air resistance.

Answer in units of m/s

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