Question

What is rectilinear motion?

Answer 1

The motion of an object which travels in a straight path.
eg: the car moving on a straight road...

Answer 2

The object moving in a straight path is called linear or rectilinear motion.

An object is said to be in rectilinear motion if it changes its position, along a straight line path.

Examples - a car moving in a straight road.

A jet moving straight in air