1.23 use the relationship between force, change in momentum and time taken

1.23 use the relationship between force, change in momentum and time taken

Initial momentum of object= mu
Final momentum= mv
Therefore increase in momentum = mv-mu
Rate of increase of momentum= (mv-mu)/t

(mv – mu)/t
m(v-u)/t
ma=Force
Force = Rate of increase of momentum
Force = Change in momentum / time