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August 29, 2014

Homework Help: Physics

Posted by Kaegan on Sunday, November 20, 2011 at 5:14pm.

In many locations, old abandoned stone quarries have become filled with water once excavating has been completed. While standing on a quarry wall, a boy tosses a piece of granite into the water below. If he throws the rock horizontally with a velocity of 3.0 m/s and it strikes the water 4.5 m from the base of the wall, how high above the water is the wall?

Alright I think figured out that time = 1.5s
because D = VT
4.5m = 3.0 m/s * T
but where do I go from here?

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