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22 November, 08:07

fastest humans can reach speeds of about 11 m/s. part a in order to increase his gravitational potential energy by an amount equal to his kinetic energy at full speed, how high would such a sprinter need to climb? express your answer to two significant figures and include the appropriate units.

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  1. 22 November, 08:23
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    6.17 m

    Explanation:

    speed, v = 11 m/s

    Let the mas is m.

    As according to the question

    Potential energy = kinetic energy

    m x g x h = 0.5 m v²

    where, h is the height raised.

    9.8 x h = 0.5 x 11 x 11

    h = 6.17 m

    Thus, the height raised is 6.17 m.
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