Question

newton second law and it's derigation

Answer 1

‘The rate of change of momentum is proportional to the applied force and the change of momentum occurs in the direction of the force’
we know that P=mv
let initial momentum be mu and final be mv,
According to Newton's 2nd law
rate of change
of momentum=change in momentum/Time.
=mv-mu/T
=m(v-u)/T
=ma. (a=v-u/t)
but, according to Newton's 2nd law,
ma is proportional to F
F=k ma. (k=constant and it's value is 1)
F=ma
HENCE PROVED!!

Answer 2

Hello,

For a constant mass m,

Newton's second law looks like:

F = m * (V1 - V0) / (t1 - t0)

The change in velocity divided by the change in time is the definition of the acceleration a.

The second law then reduces to the more familiar product of a mass and an acceleration:

F = m * a.

thanks ☺️❤️