In a cam – follower mechanism, the follower needs to rise through 20 mm during 60° of cam rotation the first 30° with a constant acceleration and then with a deceleration of the same magnitude. The initial and final speeds of the follower are zero. The cam rotates at a uniform speed of 300 rpm. The maximum speed of the follower is
1
0.60 m/s
2
1.20 m/s
3
1.68 m/s
4
2.40 m/s