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A construction worker riding an open elevator is moving upward with a speed of 6.0 m/s....

A construction worker riding an open elevator is moving upward with a speed of 6.0 m/s. When he is 42 m above the ground he accidentally drops a hammer. What are the maximum height reached by the hammer, the time it takes for the hammer to fall to the ground and speed of the hammer when it hits the ground?
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