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Math Help - kinetic energy

  1. #1
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    kinetic energy

    kinetic energy is linearly proportional to speed.

    a) true
    b) false
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  2. #2
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    Quote Originally Posted by babygirl
    kinetic energy is linearly proportional to speed.

    a) true
    b) false
    False, because,
    e=\frac{1}{2}mv^2
    If they are linearly proportional you are impliying,
    \frac{\frac{1}{2}mv^2}{v}=\frac{1}{2}mv=\mbox{ konstant}
    Therefore, it is right to say,
    "kinetic energy is directly proportional to the square of speed"
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