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A stone is thrown straight up from the edge of a roof, 925 feet above the ground, at a speed of 10 feet per second.

A stone is thrown straight up from the edge of a roof, 925 feet above the ground, at a speed of 10 feet per second.
A. Remembering that the acceleration due to gravity is -32 feet per second squared, how high is the stone 3 seconds later?
B. At what time does the stone hit the ground?
C. What is the velocity of the stone when it hits the ground?

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