1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution Since the wheel is rolling , vcm=ωr , acm = αr The wheel is in pure rotation about the point O where it touches the surface . The point P is a distance 4/3 from the bottom point . Angular acceleration of the point = 3 rad/s2 vP = 4m/s Radial acceleration of the point P about bottom point O = vP2/(4/3) = 12 m/s2 . Are the two components of acceleration correct ?