Question

what is rectilinear motion​

Answer 1

Answer:

Linear motion (also called rectilinear motion) is a one-dimensional motion along a straight line, and can therefore be described mathematically using only one spatial dimension.

Answer 2

Explanation:

A motion described by a body along a straight line is called rectilinear motion.

OR

When a body moves along a straight line, the motion described by the body is called rectilinear motion.

For example - a vehicle moving straight on a road, a train moving on a straight rail track, a freely falling stone, etc.