prove that F=ma with respect to momntum
Answers
Explanation:
let mass be m and moving on straight line with an initial velocity u, it is uniformly accelerated to velocity v, in time t by the application of a constant force f , throughout the time t,
initial momentum P1 =mass *initial velocity
final momentum P2= mass*final velocity
the change in momentum ∞ P2 - P1
∞ mv- mu
∞ m *(v-u)
the rate of change of momentum∞ m*(v-u)/t
or, applied force,
F ∞ m*(v-u)/t
F = km *(v-u)/t
= kma
here ,k is constant of proportionality
so ,
F = ma
Answer:
Newton's second law of motion states that the force applied to the system is equal to the time rate of change of momentum.
So, F= dp/dt
But P=mv
So, F= dt/d(mv)
Or F=m x dt/dv
⟹ F=ma