ObtainNewton.s second law for system of particle and write it.

1.	ObtainNewton.s second law for system of particle and write it.
Answer» Solution :Linear momentum of system of particle `vecp=mvecv""...(1)` Taking DIFFERENTION on both side with time `(dvecp)/(dt)=M(dvecv)/(dt)` (where M = constant) `therefore (dvecp)/(dt)=MvecA""...(2)` but `MvecA=vec(F)_(ext""…(3)` From equation (2) and (3), `(dvecp)/(dt)=vecF_(ext)""...(4)` is a Newton.s second LAW for the system of particles. The external force acting on a system is equal to rate of change of TOTAL linear momentum of the system... This is Newton.s second law for a system.

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