Suppose we define a quantity 'Linear Pomentum' as linear pomentum… - Vidyadip

Question

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

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Answer

As in case linear momentum = mass × speed
As velocity is speed in linear motion (only difference between speed and velocity is that in velocity we consider displacement in linear motion displacement is equal to distance so here speed = velocity). hence if no external force is applied linear momentum will be conserved. as linear momentum is conserved.

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