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Your friend claims he can throw a baseball straight up with a speed of 80 mi/h....

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Physics

Your friend claims he can throw a baseball straight up with aspeed of 80 mi/h. You do not
believe him, so you design an experiment that will enable you tocalculate the speed of a thrown
ball. You attach a 0.5-kg block to a vertical spring. The blockhangs a distance of 0.05 m below
the relaxed position. Your friend stands directly beneath thehanging block and throws the
baseball straight up. He releases the ball at a distance of 2.4 mbelow the hanging block. You
design the experiment so that the ball sticks to the block afterthe collision. You observe that the
block-baseball combination rises a distance of 0.18 m after thecollision.
ï‚· Do you believe that your friend can throw a baseball with a speedof 80 mi/h?

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