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Vechile stop on applying brakes does thi...

Vechile stop on applying brakes does this phenomenon violate the principle of conservation of momentum

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No , it does not violate bacase external force is acting on the system
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A car moving with a speed of 40 km/hr comes to rest at a distance of 2 m after applying brakes. If the same car is moving with a speed of 80 km/hr, what is the minimum stopping distance?

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PREMIERS PUBLISHERS-LAW OF MOTION -OTHER IMPORTANT QUESTIONS & ANSWERS (II Very Short Answer Question)
  1. Show that if the force acting on the particle is zero its momentum r...

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  2. Will the momentum remain conserved if some external force acts on the...

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  3. Vechile stop on applying brakes does this phenomenon violate the princ...

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  4. Define impulse .

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  5. Write the expression for impulse in terms of average force

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  6. A bus weighingh 900 kg is at rest on the bus stand what is the linear...

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  7. What is normal force

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  8. Which is grater mu(s) or mu(k)

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  9. What is the relation between angle of friction and angle of repose

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  10. What is the angle between frictional force and isntantaneous velocity...

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  11. What is the angle between frictional force and isntantaneous velocity...

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  12. A body is in equilibrium on a rough inclined plane undr its own weight...

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  13. Does the force of friction depends on the area of contact

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  14. It is easier to roll barrel than to pull it along the road why

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  15. What is coefficient of static friction?

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  16. What happens to coefficient of friction when weight of the body is do...

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

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  18. Can you cite a situation where no force acts on a body.

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  19. What are position dependent forces

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  20. Does friction occur in liquid and gases.

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