1. The problem statement, all variables and given/known data You have a ball rolling down an inclined plane of h height and an angle theta. I have to calculate the frictional force if the ball is not slipping 2. Relevant equations t= FRsin theta I=2/5mR^2 3. The attempt at a solution Where on the ball is the torque being measure is it the center of gravity or is it at the outer most region of the ball. The ball is solid.