Question

.Show that the total linear momentum of a system of particles is conserved in the absence of any

external force​

Answer 1

Explanation:

 if external force acting on the system is zero then, Hence we conclude that when resultant external force acting on any particle is zero then total linear momentum of the system remains constant. This is known as law of conservation of linear momentum.

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Answer 2

Explanation:

consider collision between two balls. The momentum of these two balls before collision are

(p1)i=m1u1

(p2)i=m2u2

:-Total momentum, pi=m1u1+m2u2