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A ball is thrown toward a cliff of height h with a speed of 30 m/s...

A ball is thrown toward a cliff of height h with a speed of 30 m/s and an angle of 60∘ above horizontal. It lands on the edge of the cliff 3.0 s later.

a) How high is the cliff?

b) What was the maximum height of the ball?

c) What is the ball's impact speed?

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