proof second law of Newton's Law second law of Newton's Law of Motion from the first look
Answers
Newton's second law is the updated law of first law with few limitations.
Explanation:
Before understanding Newton's second law of motion, it is necessary to understand the meaning of momentum.
The product of mass and velocity of an object is called momentum.
(p) momentum = mass × velocity = mv
A momentum is a vector sign whose direction is the same as that of velocity.
Newton's second law of motion-
"The rate of momentum of an object is directly proportional to the force exerted on that object and the momentum changes in the direction of the force applied."
F = Δp / Δt (Δp = change in momentum)
As another rule -
The force F applied on an object is equal to the mass m of that object and the product of the acceleration produced in the direction of the force in that object.
Force = mass x acceleration or
F = ma
In this equation, if F = 0, a = 0 because m is not zero, that is, if external force is not applied on the object, the acceleration of the object is also not produced.
The acceleration being zero means that the object will either remain in the resting state or will move at a fixed speed. Thus Newton's first law (Galileo's law) is a part of the second law.
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