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Alida runs her car on the dry matble flo...

Alida runs her car on the dry matble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing order will be

A

(A) wet marble floor, dry marble floor, newspaper and towel

B

(B) newspaper, towel, dry marble floor, wet marble floor.

C

(C) towel, newspaper, dry marble floor, wet marble floor.

D

(D) wet marble floor, dry marble floor, towel, newspaper.

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MBD-FRICTION-EXAMPLE
  1. Fill in the blanks Slinding friction is ………….than the static frictio...

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  2. Four children were asked to arrange forces due to rolling, static and ...

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  3. Alida runs her car on the dry matble floor, wet marble floor, newspape...

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  4. Supose your writing desk is tilted a little. A book kept on it starts ...

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  5. You spill a bucket of soapy water on a marble floor accidently. Would ...

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  6. Explain why sportsmen use shoes with spikes.

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  7. Iqbal has to push a lighter box and Seema has to push a similar heavie...

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  8. Explain why sliding friction is less than static friction.

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  9. Give examples to show that friction is both a friend and a foe.

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  10. Explain why objects moving in fluids must have special shapes.

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  11. While pushing a heavy box from one place to another in his house, Nare...

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  12. Why does a body stop after rolling down for some time ?

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  13. You spill a bucket of soapy water on a marble floor accidently. Would ...

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  14. Alida runs her car on the dry matble floor, wet marble floor, newspape...

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  15. Static friction works when:

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  16. Rolling friction is:

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  17. Four children were asked to arrange forces due to rolling, static and ...

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  18. Alida runs her car on the dry matble floor, wet marble floor, newspape...

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  19. In which direction the force of friction acts?

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  20. It is difficult to move a cycle along a road with its brakes on. Why?

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