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प्रश्न
Answer the following in a word or two or in a sentence.
Name a method used to reduce friction.
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उत्तर
Oiling or lubricating.
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संबंधित प्रश्न
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
What is the cause of friction?
Define sliding friction
Define rolling friction
Tick the most appropriate answer.
A car skids on a wet or muddy road due to
Tick the most appropriate answer.
Friction produces
Fill in the blank.
Smoother the surface, ................. is the frictional force offered by it.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
Why is a ball bearing used in a cycle hub?
Assertion: Friction always opposes the motion.
Reason: Whenever one surface moves or tries to move over another surface, the force of friction starts acting on the surfaces.
