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Seat belts in cars are called safety bel...

Seat belts in cars are called safety belts. Why?

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PRADEEP-GRAVITATION-Model Test paper (1)
  1. A train starting from a railway station and moving with uniform accele...

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  2. What is the nature of the distance-time graphs for uniform and non-uni...

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  3. Seat belts in cars are called safety belts. Why?

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  4. A body covers half the distance with a speeed of 20 m//s and the other...

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  5. A bullet of mass 20 gram is fired horizinatally with a speed of 150m//...

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  6. A truck starts from rest and rolls down a hill with a constant acceler...

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  7. If diameter of earth becomes half of its present value and its mass be...

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  8. An athlete complete one round of a circular track of diameter 200m in ...

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  9. Draw distance time graph of a body (i) at rest (ii) in uniform motio...

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  10. Derive graphically the relation v=u+at,where the symbols have their us...

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  11. A balloon is rising up with an acceleration of 10m//s^(2). A body is d...

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  12. To catch a fast cricket ball, a player pulls his hands backwards. Why ...

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  13. The car A of mass 1000 kg travelling at 25 m//s collides with another ...

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  14. A 60 kg tiger springs at hunter with a velocity of 10 m//s the hunter...

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  15. Two bodies each of mass 10 kg attract each other with a force of 0.1 m...

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  16. Using second law of motion, derive the relation between force and acce...

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  17. Draw velocity time graph of a body (i) at rest (ii) in uniform motio...

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  18. State the law of conservation of linear momentium. How do you obtain t...

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  19. Define G and g. how are they telated to eachother ? Use this relation ...

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  20. Use velocity time graph to derive the relation : v^(2)-u^(2)=2 as, whe...

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