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The rotational kinctic energy of a body ...

The rotational kinctic energy of a body rotating about proportional to

A

Time period

B

(Time period)

C

(Time period)–

D

(time period)-

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The correct Answer is:
D
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ERRORLESS -ROTATIONAL MOTION-Practice Problems (Problems based on kinetic energy, work and power)
  1. What is the ratio of the rolling kinetic energy and rotational kinetic...

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  2. A solid sphere is moving on a horizontal plane. Ratio of its translati...

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  3. The speed of rolling of a ring of mass m changes from V to 3V . What...

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  4. A disc of mass 4 kg and of radius 1 m rolls on a horizontal surface wi...

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  5. The ratio of kinetic energies of two spheres rolling with equal centre...

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  6. A symmetrical body of mass M and radius R is rolling without slipping...

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  7. A solid sphere of mass 1 kg rolls on a table with linear speed 1 m/s. ...

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  8. A circular disc has a mass of 1kg and radius 40 cm. It is rotating abo...

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  9. The rotational kinctic energy of a body rotating about proportional to

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  10. If a body completes one revolution in pi sec then the moment of inerti...

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  11. A tangential force F is applied on a disc of radius R, due to which it...

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  12. If the rotational kinetic energy of a body is increased by 300 %, then...

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  13. A wheel of moment of inertia 10 kgm^2 is rotating at 10 rotations per ...

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  14. A flywheel has moment of inertia 4kg-m^(2) and has kinetic energy of ...

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  15. An engine develops 100 kW, when rotating at 1800 rpm. Torque required ...

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  16. A wheel of radius r rolls without slipping with a speed v on a horizon...

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  17. A fly wheel of moment of inertia I is rotating at n revolutions per se...

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  18. If L, M and P are the angular momentum, mass and linear momentum of a ...

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  19. A uniform thin rod of length l is suspended from one of its ends and i...

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  20. A body rotating at 20rad//s is acted upon by a constant torque providi...

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