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प्रश्न
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
उत्तर
When we roll an object on a surface, the friction produced between the object and the surface is called rolling friction. Example: when we pull our large suitcases on wheels, rolling friction comes into play. The wheels reduce friction and cut down a lot of effort required to move the suitcase (Rolling friction is less than sliding friction).
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संबंधित प्रश्न
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Assertion: We can live very happily if friction is not present in nature.
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Reason: The tires of the vehicle lose their grip on the road due to an increase in friction due to the presence of water on the road.
