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30 June, 03:47

5. A car has a kinetic energy of 4.32x105 J when traveling at a speed of 23 m/s. What is

its mass?

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Answers (1)
  1. 30 June, 04:08
    0
    m = 163.33 kg

    Explanation:

    KE = 4.32x10^5

    V = 23

    KE = 1/2 mv^2

    4.32x10^5 = 1/2 * m * 23^2

    8.64x10^5 = 529m

    m = 163.33 kg
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