Q. If no external force acts on a system of bodies, the total linear momentum of the system of bodies remains constant. Which law states this?
Solution:
Newton’s first law of motion – sometimes referred to as the law of inertia.
Newton’s first law of motion is often stated as. 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.
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