Question

what is law of motion
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Answer 1

First law

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.[2][3]

Second law

In an inertial frame of reference, the vector sum of the forces F on an object is equal to the mass m of that object multiplied by the acceleration a of the object: F = ma. (It is assumed here that the mass m is constant – see below.)

Third law

When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body.

Answer 2

• A body in motion will remain in motion and a body at rest will remain at rest until and unless an external give(unbalanced) is applied on it.

• Force applied is directly proportional to change in linear momentum.

• To an every action there is always an equal and opposite reaction!