Torque and Magnitude of Acceleration Question

[jegues]

Homework Statement

Question and data in attached diagram.

Homework Equations

Also in attached diagram.

The Attempt at a Solution

Again, in attached diagram.


I can't establish the link between the rotation inertia and radius of the pulley into how that effects the acceleration of my 2 block system. I'm assuming you have to use the torque or angular momentum to work it in there?

 

[kuruman]

Write Newton's 2nd Law for the pulley. That will give you a relation between the tensions on the two sides.

 

[jegues]

Torque = rxF ; F = T2-T1

Therefore torque = rx(T2-T1), Thats the only thing i can think of...

 

[jegues]

bump, I don't know how to use Newtons 2nd law on the pulley :/.

Torque corresponds to force, I to mass...

 

[kuruman]

(T₂-T₁)R = I α = I a/R