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pentazoid
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Homework Statement
A uniform circular pulley of mass 2m can rotate freely about its axis of symmetry which is fixed in a horizontal position. Two masses m, 3m are connected by a massless string which passes over the pulley without slipping. The whole system undergoes planar motion with the masses moving vertically . Take the rotation angle of the pulley as generilesed coordinate and obtain Lagrange's equation for the mtoion. deduced upward acceleration.
Homework Equations
The Attempt at a Solution
3Mdv/dt=3Mg-T
Mdv/dt=T-Mg
deltaH=a*delta(theta)
v_c=v-a*omega
Sigma=T*dr=0
r x Mg(-y-hat)=0
pulley is frictionless.
Seems like the only thing I should do would be to find T which would help me find the acceletion for M.