Draw the profile of a cam operating a roller follower having a lift of 35 mm. The line of stroke of the follower passes through the axis of the camshaft. The radius of the roller is 10 mm and the minimum radius of the cam is 40 mm. The cam rotates at 630 rpm counterclockwise. The follower is raised with SHM for 90° of the cam rotation, dwells for the next 60°, and then lowers with uniform acceleration and deceleration for the next 150°. The follower dwells for the rest of the cam rotation. Calculate the maximum velocity and maximum acceleration during ascent and descent. (Ans. 2.31 m/s, 304.9 m/s^2, 1.76 m/s, 88.98 m/s^2)