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March 27, 2017

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skateboards on a hill time speed kinetic energy and work
starting from rest angel and Brittany skateboard down a hill as shown. angel rides down the steep side while britney rides down the shallow side. Angel has more mass than Britney. assume that friction and air Resistance are negligible.
Is the speed at the bottom of the hill greater for angel, (ii)greater for Britney, or (iii) the same fir both skateboards?
Explain your reasoning

  • physics - ,

    decrease in potential energy = gain in kinetic energy
    so
    v^2 is the same for both

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