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प्रश्न
Give two examples to show that greater the mass, greater is the inertia of the body.
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उत्तर
Examples to show that greater the mass, greater is the inertia of the body are as shown below:
(i) If you want to start a car by pushing it, you find that it takes a very large force to overcome its inertia. On the other hand, only a small force is needed to start a child's express wagon. The difference between the car and express wagon is the difference in mass. The car has a large mass, whereas the wagon has a small one.
(ii) A cricket ball is more massive than a tennis ball. The cricket ball acquires a much smaller velocity than a tennis ball when the two balls are pushed with equal force for the same time.
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