Question

A 2-kilogram block rests at the edge of a platform that is 10 meters above level ground. The block is launched horizontally from the edge of the platform with an initial speed of 3 meters per second. Air resistance is negligible. The time it will take for the block to reach the ground is approximately

Answer 1

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vertical free fall equation ... h = -1/2 g t^2 + Vo t + Ho0 = -1/2 * 9.8 * t^2 + 0 + 10 = -4.9 t^2 + 10solve for t (quadratic formula)the horizontal motion has no effect on the flight time.

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