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26 January, 12:53

Determine the mechanical energy of this object:

a 1-kg ball rolls on the ground at 2m/s

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  1. 26 January, 13:28
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    Mechanical energy = potential energy + kinetic energy

    The ball is on the ground so has no potential energy.

    M. E = K. E

    M. E = 1/2 mv²

    M. E = 1/2 x 1 x 2²

    M. E = 2 J
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