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प्रश्न
Rolling friction is slightly greater than sliding friction.
पर्याय
True
False
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उत्तर
Rolling friction is slightly greater than the sliding friction- False.
Correct statement:
Rolling friction is slightly lesser than sliding friction.
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संबंधित प्रश्न
Give an example to illustrate the existence of the force of friction.
List three ways of reducing friction.
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.
Answer the following in short.
What do you understand by normal force?
Fill in the blank.
Rolling friction offers ............. resistance than sliding friction.
Answer the following in a word or two or in a sentence.
Name the force responsible for opposing the motion between two bodies in contact.
Answer the following in detail.
Define friction and explain how it is useful to us.
Why is a ball bearing used in a cycle hub?
Is there any possibility of making a special device to measure the magnitude of friction directly?
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
