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Write advantages and disadvantages of fr...

Write advantages and disadvantages of friction

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Friction is lke fire. Sometime it is desirable and necessary sometime it is undesirable
Friction oppose relative motion and dissipated power in form of heat energy
Due to friction there is wear and tear in parts of machines
Due to friction clothes shoes tyres of vehicles are warn out.
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KUMAR PRAKASHAN-LAW OF MOTION-SECTION-A(QUESTION PAPER)
  1. Explain - product of mass and velocity is important in producing effec...

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  2. “Momentum and changes in momentum are not always in same direction”. E...

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  3. Write Newton’s third law of motion

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  4. Write important points of Newton’s third law of motion.

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  5. Explain conservation of linear momentum by suitable example.

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  6. What are concurrent forces ?

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  7. Write different type of common forces.

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  8. What is friction ? Explain static frictional force is caused due to ro...

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  9. Explain Kinetic friction. Write laws of kinetic friction. Define coeff...

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  10. Explain - “Static friction force opposes impending motion”

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  11. What is rolling friction ? Write laws of rolling friction. Define coef...

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  12. Write advantages and disadvantages of friction

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  13. Write remedies to reduce friction.

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  14. Write equation of centripetal acceleration and centripetal force for u...

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  15. Obtain the formula for the maximum safe speed (v(max)) of a vehicle on...

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  16. For a vehicle moving on a banked curved road, using free body diagram ...

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  17. Write the formula for the maximum permissible speed of a vehicle movin...

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  18. What is optimum speed ? Write its equation.

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  19. Write condition that vehicle can be parked on circular road with slope...

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  20. Write important guidance for solving problems in mechanics

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