Question

Newton's first law of motion defention

Answer 1

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newton first law also known as law of inertia

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it states that the object will remain at rest or will continue to remain in uniform motion on a straight line on a frictionless surface unless and untill compelled by  any external force

Answer 2

According to this law of motion if a body is in a state of rest or state of motion it will remains in initial state until some external force applied on it