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What is the physical importance of moment of inertia?

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Physical importance of moment of inertia : The moment of inertia is very important in our daily life. To increase the moment inertia of the wheels of scooter, motor cycle, bicycle, riksha, tanga and bull cart etc. most of the material i.e., is on the circumference which is connected by spokes with the axis. By riding on a bicycle and then leaving the pedal it can move for some time i. e., upto some distance due to more moment of inertia, which means the wheels keeps on moving.

The use of moment of inertia is very significant in automobile areas. Automobile engines which generate rotational energy, has a flywheel which is a wheel with high moment of inertia. When the value of torque increases or decreases which rotates the shaft, then the flywheel due to very high moment of inertia moves with a constant speed, due to which we are saved from high shocks.

The motor toys of children also have flywheel. It is rubbed on the ground and then left due to which it moves upto some distance.

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