1. The problem statement, all variables and given/known data I'm doing a coursework where I must find the angular acceleration of a rolling tin can using theoretical values. I have its mass and radius. I actually have experimental data so i have access to the actual values of angular velocity and angular acceleration, as well as time. 2. Relevant equations v= angular velocity * radius acceleration = torque / moment of inertia moment of inertia = 1/2mr2 v= square root (gh) angular acceleration = change in angular velocity / change in time Torque = force * radius 3. The attempt at a solution I'm really stuck but I thought of calculating the linear velocity by using mgh= 1/2mv2, then using the velocity and radius to calculate the angular velocity. Once I have that I could calculate two angular velocities and use the time between them to measure the acceleration. Another attempt was to use a = torque / I and try to calculate the torque but I don't know what force to use. I believe it could be friction but I do not have information on friction.