# physics

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A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building.
The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

• physics -

how long is it in the air?

66.8=1/2 g t^2 solve for t.

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