What is the balls velocity just before striking the ground

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Reference no: EM13305738

A ball is thrown straight up with a velocity of 18.0 m/s from the edge of the top of a building 30 meters tall.

A) How long does it take for the ball to strike the ground at the bottom of the building?

B) What is the balls velocity just before striking the ground?

Reference no: EM13305738

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