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A man stands on the roof of a 15.0-m-tall building and throws a rock with a velocity of magnitude 28.5 m/s at an angle of 35° above the horizontal. you can ignore air resistance. calculate (a) the maximum height above the roof reached by the rock; (b) the magnitude of the velocity of the rock just before it strikes the ground; and (c) the horizontal range from the base of the building to the point where the rock strikes the ground.