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How does a lubricant help in decreasing friction ?

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MBD PUBLICATION-FRICTION-QUISTION BANK
  1. Define angle of friction and angle of repose and show that they are eq...

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  2. How friction is reduced ?

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  3. How does a lubricant help in decreasing friction ?

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  4. How does friction depend upon the normal reaction ? How it can be expe...

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  5. Discuss the statement “friction is a necessary evil”.

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  6. Why it is easier to roll a barrel than to push it along the road ?

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  7. A body of mass 5 kg is just in .motion along a horizontal plane. If th...

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  8. What is kinetic friction ?

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  9. Explain what is meant by co-efficient of friction and angle of frictio...

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  10. Friction is necessary evil, comment. Mention some methods of reducing ...

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  11. Define angle of friction.

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  12. What is rolling friction ?Why is it smaller than the sliding friction ...

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  13. Define co-efficient of static friction and co-efficient of kinetic fri...

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  14. What is sliding friction ? Explain with the help of a graph how does i...

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  15. Explain why a car travelling on a level road with coefficient of frict...

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  16. What are laws of static friction, Find out an expression for coefficie...

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  17. Explain how a body will move up in an incline with uniform velocity if...

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  18. What are different types of friction ? What are advantages and disadv...

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  19. What is friction ? How do you explain it on the basis of old theory an...

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  20. Friction is necessary evil, comment. Mention some methods of reducing ...

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