In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole. With what minimum speed must the 50 kg athlete leave the ground in order to lift his center of mass 2.10 m and cross the bar with a speed of 0.70 m/s?
Express your answer to two significant figures and include the appropriate units.
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In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energ...
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