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13 February, 10:24

Select the correct answer. Julie is cycling at a speed of 3.4 meters/second. If the combined mass of the bicycle and Julie is 30 kilograms, what is the kinetic energy? 1.7 * 102 joules 1.5 * 102 joules 2.0 * 102 joules 2.2 * 102 joules

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  1. 13 February, 10:34
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    KE = 0.5mv^2

    0.5*30*3.4^2

    =173.4J
  2. 13 February, 10:35
    0
    Kinetic energy is 1/2 mv^2

    1/2^30^3.4^2=15*11.56=173.4. 1.7^102=173.4. It is the first one.
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