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12 February, 21:22

The kinetic energy of a 1000-kg roller coaster car that is moving with a speed of 20.0 m/s.

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  1. 12 February, 22:41
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    E = (mV^2) / 2

    m=1000kg, V=20m/s

    then, E = (1000kg * (20m/s) ^2) / 2

    E = (1000*400) / 2 J = 200000J
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