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April 18, 2014

Homework Help: math

Posted by jen on Thursday, October 13, 2011 at 7:49pm.

A ball is thrown from the edge of a cliff with an initial velocity of 60m/s upward. Answer the following questions using + (upward) and - (downward) to indicate the direction of the velocity. Ignore air resistance and assume the ball does not hit the ground during the question.
(a) Find the velocity of the ball 5 seconds after it is thrown. 1 m/s.

(b) Find the velocity of the ball 10 seconds after it is thrown. 2 m/s.

(c) How high does it rise above the edge of the cliff (from where it was thrown)? 3 m.

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