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A ball is thrown straight up in the air at an initial speed of 30 m/s. At the same time the ball is thrown, a person standing 70 m away begins to run toward the spot where the ball will land. How fast will the person have to run to catch the ball just before it hits the gro
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A ball is thrown straight up in the air at an initial speed of 30 m/s. At the same time the ball is...
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