The Rod O A Rotates Clockwise With A Constant Angular Velocity Of 6 Rad S (1)

The rod OA rotates clockwise with a constant angular velocity of 6 rad/s. Two pin-connected slider blocks, located at B, move freely on OA and the curved rod whose shape is a limacon described by the equationr=200(2−cosθ)mm.Determine the magnitude of the acceleration of the slider blocks at the instant θ = 145