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21 October, 07:56

A soccer ball with a mass of 0.45 kg is kicked and is moving at 8.9 m/s. Find the kinetic

energy of the ball.

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Answers (1)
  1. 21 October, 08:09
    0
    17.82J

    Explanation:

    Kinetic energy = 1/2 mv^2

    Given

    Mass M = 0.45kg

    Velocity v = 8.9m/s

    Therefore,

    K. E. = 1/2 x 0.45 x (8.9) ^2

    = 1/2 x 0.45 x (8.9 x 8.9)

    = 1/2 x 0.45 x 79.21

    Multiply through

    = 35.6445/2

    = 17.82J

    The kinetic energy of the ball is 17.82J
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