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2 February, 04:31

If gravity is the only force present, what is the total mechanical energy of a

book falling off a shelf at a time when its potential energy is 50 J and its

kinetic energy is 60 J?

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Answers (1)
  1. 2 February, 07:24
    0
    110 J

    Explanation:

    Mechanical Energy = Kinetic Energy + Potential Energy

    = 60 J + 50 J

    = 110 J
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