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physics

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Object A has a gravitational potential energy of 24 joules when it rests on a shelf 5 m above the ground. Object B has a mass that is three times the mass of Object A. What would be the gravitational potential energy of object B when it rests on a shelf 10 m above the ground?

o A. 72 joules

o B. 120 joules

o C. 144 joules

o D. 240 joules

  • physics - ,

    ISn't GPE proportional to mass x height?

  • physical science - ,

    24 = w x 5
    w = 24/5
    w = 4.8

    4.8 x 3
    = 14.4

    gpe = 14.4kg x 10m
    = 144

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