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प्रश्न
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
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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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A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
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Answer the following in a word or two or in a sentence.
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Answer the following in detail.
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Rolling friction is slightly greater than sliding friction.
