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When a mass is rotating in a plane about...

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along

A

a line perpendicular to the plane of rotation

B

The radius

C

The tangent to the circle

D

An angle of `45^(@)` to the plane of rotation

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The correct Answer is:
a
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SURA PUBLICATION-MOTION OF SYSTEM OF PARTICLES AND RIGID BODIES-MULTIPLE CHOICE QUESTIONS :
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  2. If there is change of angular momentum from J to 4J in 4S, then the to...

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  3. When a mass is rotating in a plane about a fixed point, its angular mo...

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  4. The ratio of the radii of gyration of a circular disc to that of circu...

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  5. The M.I of a uniform circular disc is maximum about an axis perpendicu...

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  6. If a person standing on a rotating disc stretches out his hands, the a...

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  7. A sphere of radius r is rolling without sliding. What is ratio of rota...

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  8. A disc is rolling on the inclined plane. What is the ratio of its rota...

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  9. A sphere rolls down an inclined plane of inclination theta. What is th...

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  10. Planetary motion in the solar system is based on

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  11. Two rings of radii R & nR made from the same wire have the ratio of M....

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  12. The M.I of a ring about one of its diameter is I. The M.I about a tang...

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  13. If a solid sphere and solid cylinder of same mass and radius rotate ab...

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  14. The angular momentum of a system of particles is conserved:

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  15. A solid sphere is rotationg in free space. If the radius of the sphere...

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  16. Analogue of mass in rotational motion is

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  17. A particle of mass m is circulating on a circle of radius r having ang...

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  18. M.I. of an object does not depend upon

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  19. The angular momentum of a system of particles is conserved:

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  20. A system consisting of two masses connected by a massless rod lies alo...

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