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April 20, 2014

Homework Help: physics

Posted by Anonymous on Thursday, February 16, 2012 at 3:50pm.

A ball is thrown horizontally off the edge of a cliff with an initial speed of 20.4 m/s.
(a) How long does it take for the ball to fall to the ground 20.3 m below?
1 s

(b) How long would it take for the ball to reach the ground if it were dropped from rest off the cliff edge?
2 s

(c) How long would it take the ball to fall to the ground if it were thrown at an initial velocity of 20.4 m/s but 12 below the horizontal?
3 s

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