Question

When is a body said to be at rest ?
When is a body said to be in motion ?​

Answer 1

QUESTION-1 :-

When is a body said to be at rest ?

A➺ The body is said to be in rest when there is no change in its position with respect to time.

QUESTION-2 :-

When is a body said to be in motion ?​

A➺ A body can be defined in a motion or movement when it changes its position from one point to another with respect to the time, stationary object or a reference point.

Answer 2

Answer:

1. A body is said to be at rest when it does not change its position with respect to its surrounding

2. a body is said to be in motion when it change its position with respect to its surrounding.

Explanation:

I hope it will help you....