1. The problem statement, all variables and given/known data I think I have too many equations for unknowns for rolling without slipping. Suppose a wheel is pushed and left rolling along the ground without slipping. 2. Relevant equations T = I*alpha, where alpha is the rotation about the wheel's centroid and I is the moment of inertia. F = ma. omega = r*v, where omega is the rotational speed, r is the wheel radius and v is the translational speed. The rolling without slipping condition. From this, alpha = r*a. T = r*F, where F is friction. 3. The attempt at a solution I*alpha = r*F, so alpha = r*F/I. For rolling without slipping, a = r^2 * F/I. But from Newton's second law, a = F/m. What am I doing wrong. Thanks.