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15 February, 11:25

A girl with mass of 40 kg sits on a sled at rest with a man of 15 kg. What is the kinetic energy of the girl and sled together

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  1. 15 February, 11:28
    0
    0 J

    Explanation:

    Kinetic energy is:

    KE = ½ m v²

    where m is mass and v is velocity.

    Since the sled is at rest, v = 0 m/s. So KE = 0 J.
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