Question 2 A uniform disk (r = 1 m) rolls on a circular surface (R = 2 m) without slipping. In the position shown, the disk has an angular rad S velocity w = 4 and angular acceleration = 2 rad $2 a) Determine the acceleration of point C on the disc in contact with the surface in the bottom position as shown in the figure. (5 marks) ac = o + ac/0 b) In the position shown, the disk has an angular velocity rad W = 4 and angular acceleration = 2 S r = 1 m, R = 2 m rad $2 Determine, in the top position shown, the acceleration of point C on the disc in contact with the surface. (5 marks) dc = o + ac/o R a R y r O X C