Hello. I'm stuck on a problem that has me determining the acceleration of a block on an Atwood's Machine. (The whole question and figure are shown in the attached screenshot).
Information
Tensions T1 and T2
M1 = 2.0kg, M2 = 4.0 kg, and Mp (pulley) = 2.0 kg
R = 6.0 cm
Frictional Torque = 0.5Nm
I started with 3 equations:
1) T1  M1g = M1a1
2) T2  M2g = M2a2
3) T2R  T1R  0.5 = I (a/R) (Net Torque)
After plugging in I = 1/2mR^2, 3 simplifies to
T2T1 = (1/2)Mpa + (0.5/R)
I'm not sure where to go from here. Please help!
Information
Tensions T1 and T2
M1 = 2.0kg, M2 = 4.0 kg, and Mp (pulley) = 2.0 kg
R = 6.0 cm
Frictional Torque = 0.5Nm
I started with 3 equations:
1) T1  M1g = M1a1
2) T2  M2g = M2a2
3) T2R  T1R  0.5 = I (a/R) (Net Torque)
After plugging in I = 1/2mR^2, 3 simplifies to
T2T1 = (1/2)Mpa + (0.5/R)
I'm not sure where to go from here. Please help!
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