**39 In Fig. 4-37, a ball is thrown leftward from the left edge of the roof, at heighth above the ground. The ball hits the ground 1.50 s later, at distance d 25.0 m from the building and at angle 0360.0° with the horizontal. (a) Find h. (Hìnt: One way is to reverse the motion, as if on video.) What are the (b) magnitude and (c) angle relative to the horizontal of the velocity at which the ball is thrown? (d) Is the angle above or below the horizontal? 000 Flg. 4-37 Problem 39.

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Special Relativity

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