As seen from the side view, what is the direction of the linear acceleration, if any, of point P, at time t = 0? Justify your answer. Explain how the student could use the function for 0(t) to determine the value of the angular speed w and the angular acceleration a after the roller has undergone a single rotation. In what direction is the acceleration of point P at the instant the roller has completed a single rotation? Justify your answer.

As seen from the side view, what is the direction of the linear acceleration, if any, of point P, at time t = 0? Justify your answer. Explain how the student could use the function for 0(t) to determine the value of the angular speed w and the angular acceleration a after the roller has undergone a single rotation. In what direction is the acceleration of point P at the instant the roller has completed a single rotation? Justify your answer.