(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

a block with mass m1= 2 kg, and a block of mass m2 = 6kg are connected by a massless string over a pulley in the shape of a solid disk having radius R = .25m and mass M = 10 kg. These blocks are allowed to move on a fixed wedge of angle pheta = 30 degrees. the coefficent of kinetic friction is .36 for both blocks and pulley. Determine A) the acceleration of the two blocks andB) the tensions in the string on both sides of the pulley.

2. Relevant equations

well, I already solved part A) I just need help with part B. I used the sumTorque = Ialpha, where alpha = a/R. along with this equation below:

3. The attempt at a solution

well, i wanted to solve for a so i did the following:(note f=coefficent of friction*): -T1Rf+60cos(T2)Rf = 1/2mR^2*(a/R) ====> -T1f +60cos(T2)f = 1/2ma.

M2gf - T1f + 60cosT2f = 1/2Ma

M2gf = M1af + 60cosM2af + 1/2Ma

M2gf = a(M1f + 60cosM2f + 1/2M)

a = M2gf/(M1f + 60cosM2f + 1/2M) = .31 m/s^2

Im not sure how to solve for the Tension though, do i use the same equation??

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# Homework Help: Torque and Inertia of objects on Inclined plane

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