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7 May, 18:16

What is the mass of a baseball that has a kinetic energy of 100 J and travel at 5 m/s

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Answers (2)
  1. 7 May, 18:26
    0
    K. E = 1/2 mv²

    So, m = K ... E*2/v²

    ∴ m = 100 * 2 / 25

    m=8 Js²/m

    As, the unit of K. E and velocities are in SI so unit of mass would also be in SI i. e, kg

    So, m=8 kg
  2. 7 May, 18:46
    0
    Mass = kinetic energy * 2 / velocity^2

    => mass = 100 * 2 / 5^2

    = 200 / 25 = 8 kg

    in short, your answer is 8 kg
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