A plate cam with a reciprocating follower is to rotate clockwise at 400 rev/min. The follower is to dwell for 60◦ of cam rotation, after which it is to rise to a lift of 2.5 in. During 1 in of the return motion, it must have a constant velocity of −40 in/s.

Recommend standard cam motions from Sec. 6.7 to be used for high-speed operation, and determine the corresponding lifts and cam rotation angles for each segment of the cam.