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18 November, 10:50

A 24kg child descends a slide 5m high and reaches the bottom with a speed of 2.8m/s. How much thermal energy due to friction was generated in this process?

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  1. 18 November, 11:19
    0
    1101.96 J

    Explanation:

    Potential energy at top = mgh = 24*10*5 = 1200J

    Kinetic energy at bottom = 1/2*m*v² = 0.5*24 * (2.8) ² = 94.08 J

    Loss of energy = 1200 J - 98.04 J

    = 1101.96 J

    Thermal energy due to friction = 1101.96 J
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Home » Physics » A 24kg child descends a slide 5m high and reaches the bottom with a speed of 2.8m/s. How much thermal energy due to friction was generated in this process?
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