A cam operating a knife edge follower is having a lift of 30 mm. The cam raises the follower with S.H.M for 150° of rotation followed by a period of dwell of 60°. The follower descends for the next 100° rotation of a cam with uniform velocity again followed by a dwell period. The cam rotates at a uniform speed of 120 rpm. Find the maximum acceleration of follower during the rise in m/s2 [up to 2 decimals]