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Work and energy problem

  1. Nov 23, 2004 #1
    work and energy problem!!

    can someone help me explain this problem?

    http://docushare.capousd.org/docushare/dsweb/GetRendition/Document-158/html [Broken]

    thanks ..
    Last edited by a moderator: May 1, 2017
  2. jcsd
  3. Nov 24, 2004 #2
    ...think...when the car is at rest...what forces are acting on it? What forces are acting on the ball? Is the ball in equilibrium?

    ...when the car is accelerated up the incline...how does this acceleration affect the ball (remember, princaple of equivalence?)
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