Q. 174.3( 3 Votes )

The quantitative definition of force is given by:
A. Newton’s first law of motion

B. Newton’s second law of motion

C. Newton’s third law of motion

D. Law of conservation of momentum.

Answer :

Newton’s second law states that the rate of change of momentum of a body is directly proportional to the force applied, and this change in momentum takes place in the direction of the applied force. Newton’s first law gives the law of inertia and third law the action & reaction law. Law of conservation of momentum states that initial momentum is equal to final momentum.


Rate of change of momentum = force applied
Force

Force = k
where k = proportionality constant


Force = kma where a = acceleration =

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