Initial momentum = pi= mu
Final momentum = pf = mv
Change in momentum= Δp = (pf-pi)
Δp = mv-mu
Δp= m (v-u)
time=Δt
rate of change= Δp/Δt = m (v-u)/Δt
F=m(Δv/Δt)
F=ma
F=dp/dt
