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20 January, 21:57

Sitting in a chairlift, Rebecca has a gravitational potential energy of 5,997.6

J. If Rebecca has a mass of 51 kg, how high off the ground is the lift?

OA) 6 m

OB) 12 m

OC) 118 m

OD) 612 m

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Answers (1)
  1. 20 January, 22:36
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    B) 12 m

    Explanation:

    Gravitational potential energy is:

    PE = mgh

    Given PE = 5997.6 J, and m = 51 kg:

    5997.6 J = (51 kg) (9.8 m/s²) h

    h = 12 m
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