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6 April, 18:14

a bear has a mass of 500kg and 100,000 J of mechanical kinetic energy. what is the speed of the bear?

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  1. 6 April, 18:24
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    Answer: v = 20 m/s

    Explanation: Solution:

    Use the formula of Kinetic Energy and derive for v:

    KE = 1/2 mv²

    To find v:

    v = √ 2 KE / m

    = √ 2 (100000 J) / 500 kg

    = √ 400 m/s

    = 20 m/s
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