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21 March, 12:36

Andre, whose mass is 77.1 kg, sits on a diving board above a dunk tank. If he is sitting 0.90 m above the water, what is his total mechanical energy?

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Answers (2)
  1. 21 March, 14:21
    0
    680 is correct

    Explanation:

    edge 2020
  2. 21 March, 16:29
    0
    680 J

    Explanation:

    Mechanical energy = potential energy + kinetic energy

    ME = PE + KE

    ME = mgh + ½ mv²

    ME = (77.1 kg) (9.8 m/s²) (0.90 m) + ½ (77.1 kg) (0 m/s) ²

    ME = 680 J
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