Question

Explain when we say body is rest or motion​

Answer 1

Answer:

A body is said to be in a state of motion when it is moving or equivalently its position continuously changes with respect to time. A body is said to be at rest when its position doesn't change with time. A body is said to be at rest when its acceleration doesn't change with time.

Answer 2

Answer:

A body is said to be in a state of motion when it is moving or equivalently its position continuously changes with respect to time. A body is said to be at rest when its position doesn't change with time. A body is said to be at rest when its acceleration doesn't change with time.