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A force of 5N changes the velocity of a ...

A force of 5N changes the velocity of a body from `10ms^-1 to 20ms^-1` in 5 sec. How much force is required to bring about the same change in 2 sec.

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R G PUBLICATION-LAW OF MOTION-EXERCISE
  1. What is inerita at rest and inertia at motion?

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  2. Is friction independent of actual area of contact.

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  3. What is static and dynamic friction.

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  4. What is the relation between co-efficient of friction and angle of rep...

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  5. Why are wheels circular?

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  6. How is impulse related with linear momentum?

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  7. Prove that F = ma.

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  8. Establish the Newton's first and third law from second law.

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  9. Vehicles stop on applying brackets. Does these phenomeno voilat the pr...

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  10. Briefly discuss the concept of ineritical mass.

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  11. Derive an expression for acceleration of body in inclined plane.

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  12. Why does a cyclist bend inwards while negotiating a curve ?

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  13. Calculate the work done is moving a bdoy up a rough inclined plane.

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  14. A force of 5N changes the velocity of a body from 10ms^-1 to 20ms^-1 i...

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  15. A bullet of mass 50 g moving with a speed of 500 ms^-1 is brought to r...

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  16. Two bodies whose masses are m1 = 50 kg and m2 150g are tight by a stri...

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  17. A curve road of diameter 1,8 km is banked so that no friction is requi...

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  18. A car starts from rest on a half kilometer bridge. The co-efficient of...

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  19. Derive an expression for acceleration of body in inclined plane.

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  20. Find the force required to move a train of mass 5000 quintals up an in...

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