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May 25, 2015

Homework Help: physics

Posted by jennifer on Thursday, November 18, 2010 at 8:32pm.

A ball is thrown straight upward and returns to the thrower's hand after 2.20 s in the air. A second ball is thrown at an angle of 31.0° with the horizontal. At what speed must the second ball be thrown so that it reaches the same height as the one thrown vertically?

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