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A string of negligible thicknes is wrapp...

A string of negligible thicknes is wrapped several times around a cylinder kept on a rough horizontal surface. A man standing at a distance l from the cylinder holds one end of the sitting an pulls the cylinder towards him figure. There is no slipping anywhere. The length of the string passed through the hand of the man whicle the cylinder reaches his hands is

A

`L`

B

`2L`

C

`3L`

D

`4L`

Text Solution

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Velocity of the highest point `= 2` (velocity of center)
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CP SINGH-ROTATIONAL MOTION-Exercise
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  2. A sphere is rolling without slipping on a fixed horizontal plane surfa...

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  3. A string of negligible thicknes is wrapped several times around a cyli...

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  4. A ball rolls without slipping. The radius of gyration of the ball abou...

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  5. A solid sphere of mass m and radius R rolls without slipping on a hori...

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  6. A hollow sphere rolls without slipping on plane surface. The ratio of ...

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  7. A solid cylinder and a sphere, having the same mass, rolls without sli...

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  8. An annular ring with inner and outer radii R1 and R2 is rolling wihtou...

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  9. A solid sphere is rolling on a frictionless surface, shown in figure w...

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  10. A small object of uniform density rolls up a curved surface with an in...

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  11. A disc of mass M and radius R is rolling with angular speed omega on a...

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  12. A solid cylinder of mass M and radius R rolls without slipping down an...

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  13. A body of mass m slides down an incline and reaches the bottom with a ...

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  14. A thin uniform circular ring is rolling down an inclined plane of incl...

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  15. A hollow sphere (i) rolls and (ii) slides down an inclined plane. The ...

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  16. A round uniform body of radius R, mass M and moment of inertia 'I' rol...

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  17. A body is rolling down an inclined plane. If K.E. of rotation is 40% ...

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  18. A solid cylinder rolls down an inclined plane of height 3m and reaches...

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  19. A solid sphere, a hollow sphere and a ring are released from top of an...

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  20. A solid sphere, disc and solid cylinder, all of the same mass, are all...

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