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Suppose your writing desk is tilted a li...

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.

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MBD -HARYANA BOARD-FRICTION-EXAMPLE
  1. Four children were asked to arrange forces due to rolling, static and ...

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  2. Alida runs her toy car on dry marble floor, wet marble floor, newspape...

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  3. Suppose your writing desk is tilted a little. A book kept on it starts...

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  4. You spill a bucket of soapy water on a marble floor accidentally. Woul...

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  5. Explain why sportsmen use shoes with spikes.

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

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  7. Explain why kinetic friction is less than static friction.

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  8. Friction is both a friend and a foe. Why do you think so? Give example...

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  9. Objects moving in fluids must have special shapes. Name this shape.

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

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  11. The moving ball on the floor stops after some time because of………

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  12. It is difficult to walk on wet floor because:

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  13. You move a stone of glass on the cemented floor, marble floor, water, ...

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  14. Static friction works when:

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  15. Rolling friction is:

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

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

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  18. In which direction the force of friction acts? What if object does not...

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  19. Why is it difficult to move a bike with its brakes on ?

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  20. Why a roling ball stops after some time? What happens to its cause whe...

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