A rock is thrown from the edge of a cliff to the ground 160, Ask an Expert

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A rock is thrown from the edge of a cliff to the ground 16.0 m below. The rock has an initial velocity of 18.5 m/s, directed 40.0° above the horizontal.

How long does it take the rock to reach the ground?
How far from the base of the cliff does the rock strike the ground?
Find the velocity/direction of the rock just before it strikes theground.

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