Question

When do we say that body is at rest and when do we say that it is moving?Explain.

Answer 1

when a body does not change its position with respect to its immediate surroundings with passage of time it is said to be at rest
whereas when a body changes its position with respect to its immediate surroundings with passage of time it is said to be in motion

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.

when a body does not change its position with respect to its immediate surroundings with passage of time it is said to be at rest

whereas when a body changes its position with respect to its immediate surroundings with passage of time it is said to be in motion.

Explanation:

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