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8 February, 13:45

How much work must be done on a 10 kg snowboard to increase its speed from 4 m/s to 6 m/s?

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  1. 8 February, 16:06
    0
    100 J

    Explanation:

    Work = change in energy

    W = ΔKE

    W = ½ mv² - ½ mv₀²

    W = ½ m (v² - v₀²)

    W = ½ (10 kg) ((6 m/s) ² - (4 m/s) ²)

    W = 100 J
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