Question

The displacement and velocity diagrams of a cam and follower mechanism are shown:

Which of the following statements is/are correct?

1.   The acceleration of the follower at the beginning and at the end of each stroke will be zero.

2.   The follower remains at rest in the dwell period.

3.   During period DE, the motion of the follower is retarding.   

         Select the correct answer using the code given below. 

         (a) 1, 2 and 3                  (b) 1 only

         (c) 2 only                        (d) 3 only