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11 September, 21:02

What is the kinetic energy of a 10 g bullet moving at 300 m/s?

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  1. 11 September, 21:52
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    Kinetic energy = (1/2) (mass) (speed) ²

    mass of the bullet = 10 grams = 0.01 kilogram

    speed of the bullet = 300 m/s

    Kinetic energy = (1/2) (0.01 kg) (300 m/s) ²

    = (0.005 kg) (90,000 m²/s²)

    = (0.005 x 90,000) kg-m²/s²

    = 450 kg-m²/s²

    = 450 joules
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