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23 January, 16:57

The mass of car 2 is twice the mass of car 1. If both cars have the same velocity, how does the kinetic energy of car

2 compare to car 1?

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Answers (1)
  1. 23 January, 17:51
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    The kinetic energy of car 1 is half Kinetic energy of car 2

    Explanation:

    velocity of car 1 is V1 while that of car 2 is V2

    From the question:

    V1 = V2

    If mass of car 1 is m, then mass of car 2 is 2m

    E = 1/2mv^2

    kinetic energy of car 2 = 1/2*2mv^2 = mv^2

    kinetic energy of car 1 = 1/2mv^2

    Therefore, Kinetic energy of car 1 is half kinetic energy of car 2
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