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Define impulse. Give its SI unit....

Define impulse. Give its SI unit.

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SL ARORA-Laws of Motion-Exercise
  1. A body is travelling with a constant speed on the circumference of a c...

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  2. How many newtons make one kg wt. ?

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  3. Define impulse. Give its SI unit.

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  4. What is difference between mN and nm ?

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  5. From which Newton's laws of motion, the definition of force comes ?

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  6. Give and state the SI unit of force.

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  7. What is friction ?

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  8. What is the unit of coefficient of limiting friction ?

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  9. What happens to coefficient of friction, when weight of body is double...

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  10. What is the need of banking a circular road ?

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  11. How does banking of roadsreduce wear and tear of the tyres ?

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  12. Three forcesstart acting simultaneously on a particle moving with a ve...

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

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  14. Action and reaction are equal and opposite. Why cannot they cancel eac...

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  15. If the net external force acting on a body is zero, then the body at r...

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  16. A tennis ball of mass 'in' strikes the massive wall with vel V and tra...

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  17. What is the maximum velocity with which a vehicle can negotiate a turn...

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  18. Athlete runs a certain distance before long jump. Name the law that ex...

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  19. Two objects of masses 2 kg and 4 kg are having the same magnitude of m...

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  20. Position time graph of a body of mass 1kg is shown in the figure.Calc...

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