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21 March, 22:14

Which car has the most kinetic energy? A car of mass 1500 kg with speed 5 m/s or A car of mass 1300 kg with speed 3 m/s or a car of mass 1200 kg with speed 2 m/s or a car mass 1400 kg with speed 4 m/s

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  1. 22 March, 02:10
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    The formula to find the kinetic energy of an object is:

    KE = 1/2 MV^2

    So if we plug in the information

    1/2 x 1500 x 5^2

    1/2 x 1500 x 25

    750 x 25

    Car 1 has a KE of 18750

    If needed you can find the other three on your own. It'd be good practice.

    The answer is car 1.
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