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16 December, 07:50

An 80 kilogram rock at the edge of a 10 meter cliff has what potential energy of joules?

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  1. 16 December, 08:05
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    Answer: PE = 7840 J

    Explanation: Potential Energy is expressed as the product of mass, acceleration due to gravity and height.

    PE = mgh

    = 80 kg (9.8 m/s2) (10 m)

    = 7840 J
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