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The Conservation of Mechanical Energy help2?

A gymnast is swinging on a high bar. The distance between his waist and the bar is 1.2 m, as the drawing shows. At the top of the swing his speed is momentarily zero. Ignoring friction and treating the gymnast as if all his mass is located at his waist, find his speed at the bottom of the swing.

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  • 1 decade ago
    Favorite Answer

    m g h = 1/2 m v^2

    v = sqrt(2 g h)

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