Question

define rest and motion​

Answer 1

Answer:

Rest - a body is said to be at rest, if it does not change its position with respect to its surrounding with time. Motion - a body is said to be at motion, if it changes its position with time.

Explanation:

Hope it helps you

Answer 2

Answer:

If body changes it's position with respect to surrounding with passage of time then it is at motion.

e.g a car moving on a road

REST

If a body doesn't changes it's position with respect to surrounding when no force act on it then the body is at rest.

e.g a book lying on a table