Question

what is first law of motion

Answer 1

The focus of Lesson 1 is Newton's first law of motion - sometimes referred to as the law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force,

Answer 2

Answer:  In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.