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Ratio of masses of merry-go-round and the boy

  1. Nov 11, 2009 #1
    1. The problem statement, all variables and given/known data
    A boy of mass mboy stands at the edge of a merry-go-round of radius R = 3.4 m and mass mmgr, and both are initially at rest. The boy then walks along the edge of the merry-go-round. After walking a distance of 25 m relative to the merry-go-round, the boy finds that the merry-go-round has rotated through an angle of 50°. Find the ratio of mboy to mmgr.



    2. Relevant equations
    I_B*W_B=I_M*W_M
    mr^2*delta theta/delta time=0.5*mr^2* delta theta/delta time


    3. The attempt at a solution
     
  2. jcsd
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