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Showing posts with the label laws of motion

How momentum of a system remains conserved ?

Answer:- If external force acting on a system of particles is zero,the total linear momentum of the system remains conserved.

What is inertia ?

Answer:- Inertia is the inherent (internal)  property of the body which opposes any change in its state of rest or uniform motion in a straight line. The name inertia was given by Galileo. It is of three types, (I) Inertia of rest (II) Inertia of motion (III) Inertia of direction