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

The displacement and velocity diagrams of a cam and follower mechanism are shown as: 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. Correct Answer 2 only

Since the slope of displacement curve is constant, the follower moves with uniform velocity during rise and return stroke.

The periods during which the follower remains at rest are known as dwell periods (BC and DE).

The follower is required to start from rest and has to gain a velocity within no time and vice versa. This is only possible if the acceleration or retardation at the beginning and at the end of each stroke is infinite.

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