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## Homework Statement

A 2.4 kg block rests on a 30° slope and is attached by a string of negligible mass to a solid drum of mass 0.80 kg and radius 5.0 cm, as shown in Fig. 10.29. When released, the block accelerates down the slope at 1.2 m/s2. What is the coefficient of friction between block and slope?

## Homework Equations

F

_{f}=mu*N

a=alpha*r

Torque=I*alpha

## The Attempt at a Solution

Ok the first thing I did was draw a free-body diagram of the block and the drum. I have F

_{net}=mg-Tension-mu*F

_{normal}then and set Tension=torque and got T=1/2*M

_{drum}*a and put that back into the original equation and solved for mu, but I didn't get the right answer. Is this even the right way to do this?