question_answer

For a given lift of the follower in a given angular motion of the cam, the acceleration/ retardation  the follower will be the least when the profile of the cam during the rise portion is:               

A) Such that the follower motion is simple harmonic

B) Such that the follower motion has a constant velocity from start to end              

C) A straight line, it being a tangent cam      

D) Such that the follower velocity increases linearly for half the rise portion and then decreases linearly for the remaining half of the rise portion