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Wheels are made circular. Why?...

Wheels are made circular. Why?

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Rolling friction is less than sliding friction.
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FULL MARKS-LAW OF MOTION -ADDITIONAL QUESTIONS SOLVED (SHORT ANSWER QUESTIONS)
  1. What is the purpose of using shockers in a car?

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  2. Why are tyres made of rubber not of steel?

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  3. Wheels are made circular. Why?

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  4. If a ball is thrown up in a moving train, it comes back to the thrower...

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  5. Calculate the force acting on a body which changes the momentum of the...

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  6. On a rainy day skidding takes place along a curved path. Why?

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  7. Why does a gun recoils when a bullet is being fired?

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  8. Why is it difficult to catch a cricket ball than a tennis ball even wh...

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  9. The distance travelled by a moving body is directly proportional to ti...

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  10. Calculate the impulse necessary to stop a 1500 kg car moving at a spee...

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  11. Lubricants are used between the two parts of a machine. Why?

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  12. What provides the centripetal force to a car taking a turn on a level ...

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  13. A body is acted upon by a number of external forces can it remain at r...

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  14. Bodies of larger mass need greater effort to put them in motion. W...

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  15. An athlete runs a certain distance before taking a long jump . Why ?

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  16. Action and reaction forces do not balance each other . Why ?

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  17. The wheels of vehicles are provided with mudguards. Why?

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  18. China wares are wrapped in straw paper before packing. Why?

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  19. Why is it difficult to walk on a sand?

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  20. The outer edge of a curved road is generally raised over the inner edg...

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