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October 22, 2014

Homework Help: math

Posted by justine on Monday, September 17, 2012 at 11:30am.

a ball is thrown vertically upward from the ground level with an initial velocity "Vo" - V sub zero

a. derive a formula for the time at w/c the ball hit the ground

b. use the formula to prove that the impact velocity by the ball is -Vo

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