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प्रश्न
Which of the following has more inertia:
- a rubber ball and a stone of the same size?
- a bicycle and a train?
- a five-rupees coin and a one-rupee coin?
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उत्तर
Since mass is proportional to inertia, the greater the mass, the greater will be the inertia.
- A stone has more mass than a rubber ball of equal size. Since mass is a measure of inertia, a stone has more inertia than a rubber ball.
- A train has more inertia than a bicycle since it is much heavier.
- A five-rupee coin is heavier than a one-rupee coin. Therefore, the inertia of a five-rupees coin is more than the inertia of a one-rupee coin.
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