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Why coefficient friction is considered a...

Why coefficient friction is considered as static friction?

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What is friction ?

For a given mass rolling friction is how many times static friction and kinetic friction

What is kinetic friction ?

Write relation between coefficient of static friction, kinetic friction and rolling friction.

A block of mass 1kg is at rest on a rough horizontal surface having coefficient of static friction 0.2 and kinetic friciton 0.15, find the frictional forces if a horizontal force, (a) F=1N (b) F=1.96N (c) F=2.5N is applied on a block

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KUMAR PRAKASHAN-SYSTEMS OF PARTICLES AND ROTATIONAL MOTION-SECTION-A (TRY YOURSELF (VSQs))
  1. How many degrees of freedom does a rotational motion about fixed axis?

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  2. Write the formula for rotational kinetic energy.

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  3. Write the formula for power in rotational motion.

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  4. Derive the equation of angular momentum in the case of rotational moti...

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  5. Give the rotational analogue of force.

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  6. Which forces needed for the rotational motion about a fixed axis?

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  7. Why the components of position vectors along axis are not needed for d...

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  8. Write the formula of work done by torque in rotational rigid body abou...

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  9. Write the formula for power in rotational motion.

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  10. Write the Newton.s second law for the system of particle performing ro...

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  11. Derive the equation of angular momentum in the case of rotational moti...

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  12. Why the angular momentum perpendicular to the axis (L(|)) in a rotatio...

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  13. Write the law of conservation of linear momentum.

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  14. Why contact points of surface of circular body are stationary?

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  15. How is the motion of rolling sphere from the slope?

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  16. Write the general formula for the kinetic energy of rolling body from ...

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  17. How much the acceleration parallel to the surface of slope for a rolli...

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  18. Write the equation of friction force parallel to the surface of slope ...

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  19. The condition for rolling without slipping on a slope having friction ...

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  20. Why coefficient friction is considered as static friction?

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