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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
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September 23, 2020 • 20:09 pm
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5 points
5 points
- IIT JAM
- Physics (PH)
Newton's laws of motion
Newton's laws of motion are three physical laws that, together, laid the foundation for classical mechanics. They describe the relationship between a body and the forces acting upon it, and its motion in response to those forces. More precisely, the first law defines the force qualitatively, the second law offers a quantitative measure of the force, and the third asserts that a single isolated force does not exist. These three laws have been expressed in several ways, over nearly three centuries,[a] and can be summarised as follows:
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Anika Best Answer
newton 3 law of motion Firat 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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