You cannot assume that the tension in the ropes equals the weight of the blocks. If that were true, the masses would be in equilibrium, not accelerating.1) I tried
m2 g r - m1 g r = 1/2 M r^2 * (acceleration / r)
Not sure what you're doing here.Hi!
I tried this m2gR - m1gr +mgR =0
Torque is only relevant for the pulley. The forces creating the torque on the pulley are the rope tensions on each side of the pulley.I am confused about which forces has torque on this problem?
For the two blocks, you'd use the usual form of Newton's 2nd law: ΣF = maHow do I suppose to set up with an equation with both torque and Newton's second law?
To solve the second part, you'll need to replace the rotational inertia of the pulley with that of a hollow cylinder. Then you'd have to determine whether that causes the acceleration to increase, decrease, or remain the same. (Hint: How does the rotational inertia of a hollow cylinder compare to that of solid cylinder?)Also,I am still confused about second part. Thanks