[" 18.Assertion:Linear momentum of a "],[" planet does not remain conserved "],[" Reason:Gravitational force acts on it "]

Will the momentum remain conserved if some external force acts on the system

Linear momentum conservation

Will the momentum remain conserved if some external force acts on the system ?

STATEMENT-1 : Assuming sun to be a body of very large mass in comparison to all other planets, the angular momentum of all the planets about the sun remains conserved. because STATEMENT-2 : Gravitational force is always conservative.

STATEMENT-1 : Assuming sun to be a body of very large mass in comparison to all other planets, the angular momentum of all the planets about the sun remains conserved. because STATEMENT-2 : Gravitational force is always conservative.

Linear Momentum Conservation

The linear momentum is conserved in

The linear momentum is conserved in

Conservation of linear momentum is equivalent to

Suppose we define a quantity Linear Momentum as linear momentum =mass x speed. The linear momentum of a system of particles is the sum of linear momentum of the individual particles. Can we state a principle of conservation of linear momentum as linear momentum of a system remains constant if no external force acts on it?