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25 July, 19:35

When the velocity of an object is doubled, by what factor is its momentum changed? By what factor is its kinetic energy changed?

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  1. 25 July, 19:45
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    Kinetic energy would increase by a factor of 4 where as momentum would increase by a factor of 2.

    Explanation:

    Kinetic Energy is given by 0.5*mass*velocity^2. Kinetic Energy is proportional to Velocity^2.

    Momentum is given by mass*velocity. Momentum is proportional to Velocity.

    If the velocity of an object is doubled, Kinetic energy would increase by a factor of 2^2 i. e 4 times. Momentum would increase by a factor of 2.
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