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A body is uniformly rotating bout an axi...

A body is uniformly rotating bout an axis fixed in an inertial frame of reference. Let `vecA` be a unit vector along the axis of rotation and `vecB` be the unit vector along the resultant force on a particle P of te ody away from the axis. The value of `vecA.vecB` is

A

1

B

-1

C

0

D

none of these

Text Solution

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The correct Answer is:
C
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HC VERMA-ROTATIONAL MECHANICS-Objective 1
  1. Let vecA be a unit vecrtor along the axis of rotation of a purely rota...

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  2. A body is uniformly rotating bout an axis fixed in an inertial frame o...

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  3. A particle moves with a constant velocity pralel to the X-axis. Its an...

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  4. A ody is in pure rotation. The linear speed v of a particle, the dista...

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  5. Figure shows a small wheel fixed coaxially on a bigger one of double t...

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  6. A body is rotating uniformly about a vertical axis fixed in an inertia...

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  7. A body is rotating anonuniformly abut a vertical axis fixed in an iner...

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  8. Let vecF be the force acitng on a paritcle having positon vector vecr...

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  9. One end of a uniform rod of mas m and length l is clamped. The rod lie...

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  10. A uniform rod is kept vertically on a horizontally smooth surface at ...

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  11. A circular disc A of radius r is made from an iron plate of thickness ...

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  12. Equal torques asct on the discs A and B of theh previous problem, init...

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  13. A closed cylindrica tube containing some water (not filling the entire...

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  14. The moment of inertias of a unifrom semicircular wire of mss M and rad...

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  15. Let I1 and I2 be the moments of inertia of two bodies of identical ge...

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  16. A body having its centre of mass at the origin has three of its partic...

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  17. A cubical block of mass M and edge a slides down a rougg inclined plan...

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  18. A thin circular ring of mass M and radius r is rotating about its ais ...

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  19. A man is sitting on a rotating stool with his arms outstretched. If su...

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  20. The centre of a wheel rolling on a plaen surface moves with a speed v0...

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