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Ball rolling down a slope

  1. Oct 17, 2011 #1
    ssssssssss
     
    Last edited: Oct 17, 2011
  2. jcsd
  3. Oct 17, 2011 #2
    Since the ramp is frictionless you can assume that energy is conserved. This means the energy of the system should be the same at any point of the ball rolling down the slope. Can you pick out two critical points of the motion, write the equations for the energy of the system at these points, and set them equal to each other? You should be able to get the final speed if you do this.
     
  4. Oct 17, 2011 #3
    yah i have no clue what you just said......
     
  5. Oct 17, 2011 #4
    Have you been taught about conservation of energy? Do you know how to write the potential and kinetic energy for a system? Maybe you can start by attempting to write the equation for the total energy of the system before the ball starts rolling down the ramp and repost.
     
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