Question

When does an object is said to be in motion?

Answer 1

Answer:

The motion of an object can be defined by its velocity.

Thus, the object is said to be in motion and its position (with respect to another object) changes with time.

Answer 2

Answer:

An object is said to be in motion, if its position changes with respect to its surroundings and time.

Hope it  helps and pls  mark me brainliest