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Homework Help: Conservation of Energy

  1. Oct 26, 2009 #1
    1. The problem statement, all variables and given/known data
    Two objects are connected by a light string passing over a light frictionless pulley as shown
    in the figure. The object of mass 5.00-kg is released from rest. Using the principle of
    conservation of energy, (a) determine the speed of the 3.00-kg object just as the 5.00-kg
    object hits the ground. (b) Find the maximum height to which the 3.00-kg object rises.

    2. Relevant equations

    3. The attempt at a solution
    I believe I am all set with part a. My question is on part B. Is it correct to say 1/2*m*v2 = m*g*h and then use 9.8 as v also and solve for h?
  2. jcsd
  3. Oct 26, 2009 #2


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    Science Advisor
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    Gold Member

    The statement of the problem is not very informative without a figure. Can you post one or at least describe what the figure shows?
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