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A ball with mass 0.15 kg is thrown upward with initial velocity 20 m/s from the roof of a building 30 m high. Neglect

A ball with mass 0.15 kg is thrown upward with initial velocity 20 m/s from the roof of a building 30 m high. Neglect air resistance. a. Find the maximum height above the ground that the ball reaches. b. Assuming that the ball misses the building on the way down, find the time that it hits the ground. c. Plot the graphs of velocity and position versus time.

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