Question

show f=ma, under what condition this expression is valid​

Answer 1

mass of a object (m) move with initial velocity (u)

accelerate with an uniformly acceleration (a) for time.so it's velociy change into final velocity (v)

final momentum (p2)=mv , initial momentum (p1)=mu

Force is directly proportional to rate of change of momentum

p2-p1 = mv-mu (change in momentum)

= m(v-u)

F is directly proportional to m(v-u)/t. ( v-u/t=a)

F=Kma (K=1)

F=ma