Explanation:
Cam and Follower Mechanism:
The cam and follower mechanism is a type of mechanical linkage that converts rotational motion into linear motion. It consists of two main components: the cam and the follower. The cam is a specially shaped rotating element, while the follower is a component that moves in response to the motion of the cam.

Kinematic Pair:
In mechanical engineering, a kinematic pair is a connection between two bodies that allows relative motion but constrains the motion in a specific way. It is the basic building block of a mechanism. A kinematic pair can be either open or closed, depending on whether there is a link or joint connecting the two bodies.

Types of Kinematic Pairs:
There are four types of kinematic pairs based on their openness or closedness:
a) Lower and Open: This type of kinematic pair allows relative motion between the bodies and has no link or joint connecting them.
b) Higher and Open: This type of kinematic pair also allows relative motion between the bodies but has a link or joint connecting them.
c) Lower and Closed: This type of kinematic pair does not allow relative motion between the bodies and has no link or joint connecting them.
d) Higher and Closed: This type of kinematic pair does not allow relative motion between the bodies but has a link or joint connecting them.

Cam and Follower Mechanism as a Kinematic Pair:
In the case of a cam and follower mechanism, the cam and follower form a higher and open kinematic pair. The cam is the driver and the follower is the driven component. The cam imparts motion to the follower through the contact between their surfaces. The follower moves in a predetermined manner dictated by the shape of the cam.

Conclusion:
The cam and follower mechanism constitutes a higher and open kinematic pair. The cam and follower are connected through a link or joint, allowing relative motion between them. The motion of the cam is transmitted to the follower, resulting in linear motion.