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प्रश्न
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
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
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उत्तर
1. F1 = Static friction
2. F2 = Sliding friction
3. F3 = Rolling friction
F1 > F2 > F3
F2 is less than F1 but greater than F3.
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संबंधित प्रश्न
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Give an example to illustrate the existence of the force of friction.
Tick the most appropriate answer.
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Answer the following in a word or two or in a sentence.
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Answer the following in a word or two or in a sentence.
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Answer the following in short.
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Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
Assertion: There is a danger of a vehicle skidding on a wet road.
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