Question

what is 1st 2nd and 3rd law of newton??
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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.

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.

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Answer 2

• 1st law : a body will be in motion or at rest until an unbalanced force acts on it
• 2nd law: the rate of change in linear momentum is directly proportional to the unbalanced force
• 3rd law: every action has an

equal and opposite reaction

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