As body is rolling, we can write the following: Acceleration of cenntre of mass `a=alphaR`
Velocity of centre of mass `v=omegaR`
From fig d. we get the following
Resultant acceleration of point `O, a_(0)=ahati`
Acceleration of `p, a_(P)=ahati-ahati+omega^(2)Rhatj=omega^(2)Rhatj`
Acceleration of `Q, a_(Q)=ahati+ahati-omega^(2)Rhatj=2ahati-omega^(2)Rhatj`
Acceleration of `S, a_(s)=ahati-omega^(2)Rhatj=(a-omega^(2)R)hati-ahatj`