If the net external force acting on a system of bodies is zero, then the momentum of the system remains constant.
Application:-
One of the applications of conservation of momentum is the launching of rockets. The rocket fuel burns are pushes the exhaust gases downwards, and due to this, the rocket gets pushed upwards. Motorboats also work on the same principle, it pushes the water backward and gets pushed forward in reaction to conserve momentum.
According to the conservation of linear momentum, If the net external force acting on a system of bodies is zero, then the momentum of the system remains constant. We have to remember that the momentum of the system is conserved and not that of the individual particles.
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According to the conservation of linear momentum,
Application:-
From science bro (◠‿◕)
Answer: