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Homework Help: Sphere rolling down a slope

  1. Jul 29, 2009 #1
    1. The problem statement, all variables and given/known data

    A Block slides down a frictionless ramp and a sphere rolls without sliding down a ramp of the same angle. the block and sphere have the same mass, start at rest from point A and descend through point B

    a) Consider the sphere rolling down the incline without sliding. If the roll is now repeated with an incline that is less steep but of the same height as the first incline, is the sphere's time to reach the botton greater than, less than, or the same as perviously? Justify your answer

    2. Relevant equations

    3. The attempt at a solution

    I think the sphere would take more time in rolling down the ramp than the first time but then if the height is the same the gravitational pull doesnt change so it would be the same? I dont know slightly confused
  2. jcsd
  3. Jul 29, 2009 #2
    Consider the component of the gravitational pull acting along the slope. It is this component that is responsible for the sphere rolling down. How is this component related to the steepness of the slope?
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