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22 July, 09:51

A 1000kg car has 50000 joules of kinetic energy. What is the speed?

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  1. 22 July, 12:03
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    KE = 1/2 m v^2

    50,000 = 1000 v^2

    v^2 = 50

    v = 7.07 m/s
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