1. The problem statement, all variables and given/known data A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane as shown in (Figure 1) . Determine the speed of the block after it has traveled 1.60 malong the plane, starting from rest. Assume the coefficient of friction between all surfaces is μ= 0.0350. Since the block is much lighter than the cylinder, ignore tension in the string when calculating the normal force on the cylinder. Do not ignore tension in the string when calculating the net torque (including friction) on the cylinder. 2. Relevant equations F=ma torque=Iα I=1/2mr^2 3. The attempt at a solution There was initially two parts to this problem, one without the presence of friction and now this one with. The problem I encounter is how to deal with the friction in regards to the pulley, and the forces at work. I know the net torque is (T-Ff)r=torque where Ff is the friction force. But I fail to know how to calculate the normal force with regards to the pulley. I've tried to just use the normal force (just mxg) but it failed. I got the answer to try and use different methods too see where I went wrong and what I found out was that an angle is present which decreases the normal force of the pulley. But I fail too see where the angle is? The normal force too me seems perfectly perpendicular to the horizontal but this obviously can't be the case. Please someone explain too me how to go about this. The answer was v=.43 m/s.