Posted by **cristie** on Thursday, November 8, 2012 at 8:28pm.

A 0.72 kg rock is projected from the edge of the top of a building with an initial velocity of 11 m/s at an angle 51◦ above the horizontal. Due to gravity, the rock strikes the ground at a horizontal distance of 17.4 m from the base of the building. how tall is the building? gravity is 9.8 m/s/s

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