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The angular velocity of a body is vecome...

The angular velocity of a body is `vecomega=3hati+5hatj+6hatk("radian"//s)`. A torque `vectau=hati+2hatj+3hatk(Nm)` acts on it. The rotational power (in watt) is

A

`31`

B

`18`

C

`28`

D

`3`

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AAKASH INSTITUTE-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - A) Objective Type Questions (One option is correct)
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  2. A body is rolling without slipping on a horizontal plane. The rotation...

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  5. The torque required to stop a wheel having moment of inertia 5xx10^(-3...

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  7. A particle performing uniform circular motion gas angular momentum L. ...

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  8. A thin wire of length l and mass m is bent in the form of a semicircle...

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  9. A constant torque acting on a uniform circular wheel changes its angul...

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  12. A solid sphere of radius r and mass m rotates about an axis passing th...

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  13. The moment of inertia of a solid cylinder of density rho, radius of ba...

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

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  15. Radius of gyration has the unit

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  16. A bomb at rest explodes. The centre of mass

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  17. If vecA*vecB=|vecAxxvecB|. Then angle between vecA and vecB is

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  18. Write SI unit of angular momentum:

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  19. If vecomega=2hati-3hatj+4hatk and vecr=2hati-3hatj+2hatk then the line...

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  20. The moment of inertia of a body does not depend on

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