Question

a) state the law of conservation of linear momentum.

b) A shell of mass 0.020kg is fired by a gun of mass looky. If the muzzle speed of the shell is 80 m/s, What is the recoil speed gun​

Answer 1

the law of conservation of linear momentum states that if no external forces act on the system of two colliding objects, then the vector sum of the linear momentum of each body remains constant and is not affected by their mutual interaction.The law of conservation of momentum states that in absence of an external force the total momentum of a system, comprising of two or more interacting bodies, is constant