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18 September, 11:35

How fast must a 1000 kg car be moving to have a kinetic energy of 2.0*10^3

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  1. 18 September, 11:42
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    Kinetic Energy is defined by Ke=1/2mv^2. Plug in and solve for v.

    2,000 = 1/2 (1000) (v) ^2

    4 = (v) ^2

    v=2 m/s

    The car must move at 2 m/s to have a Ke of 2,000 Joules.
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