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April 21, 2014

Homework Help: physics

Posted by emma on Tuesday, February 19, 2013 at 11:18am.

Bill kicks a rock off the top of his apartment building. It strikes a window across the street 12 m away. The acceleration of gravity is 9.8 m/s^2. If the window is 16 m below the position where Bill contacted the rock, how long was it in the air?

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