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2 November, 12:44

You are going sledding with your little cousins during a well-earned break. You push your 23 kg cousin so that they have a speed of 6 m/s at the top of the hill that is 17 m tall. What is the kinetic energy of your cousin at the top of the hill (after you push) ? (in J)

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Answers (2)
  1. 2 November, 14:49
    0
    kinetic energy = 414 J

    Explanation:

    given data

    mass = 23 kg

    speed = 6 m/s

    height = 17 m

    to find out

    kinetic energy

    solution

    we get kinetic energy that is express as

    kinetic energy = 0.5 * m * v² ... 1

    here m is mass and v is speed so

    put here value we get kinetic energy

    kinetic energy = 0.5 * 23 * 6²

    kinetic energy = 414 J
  2. 2 November, 16:25
    0
    414 J

    Explanation:

    mass, m = 23 kg

    velocity, v = 6 m/s

    Kinetic energy is given by

    K = 0.5 mv²

    K = 0.5 x 23 x 6 x 6

    K = 414 J

    Thus, the kinetic energy is 414 J.
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