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The imaginary angular velocity of the ea...

The imaginary angular velocity of the earth for which the effective acceleration due to gravity at the equator shall be zero is equal to
[Take g `= 10 m//s^(2)` for the acceleration due to gravity if the earth were at rest and radius of earth equal to 6400 km.]

A

`1.25xx10^(-3)`rad/s

B

`2.50xx10^(-3)` rad/s

C

`3.75xx10^(-3)` rad/s

D

`5.0xx10^(-3)` rad/s

Text Solution

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The correct Answer is:
A
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MOTION-GRAVITATION-Exercise - 1 (Section - B :- Gravitational Acceleration and Its Variation)
  1. Suppose the acceleration due to gravity at earth's surface is 10ms^-2 ...

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  2. Acceleration due to gravity at the centre of the earth is :-

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  3. The value of 'g' on earth surface depends :-

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  4. The value of 'g' reduces to half of its value at surface of earth at a...

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  5. The acceleration due to gravity on a planet is 1.96 ms^(-1). If it is ...

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  6. If the earth stops rotating sudenly, the value of g at a place other t...

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  7. Diameter and mass of a planet is double that earth. Then time period o...

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  8. Gravitation on moon is (1)/(6) th of that on earth. When a balloon fil...

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  9. The acceleration due to gravity g and mean density of earth rho are re...

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  10. Will 1 kg sugar be more at poles or at the equator?

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  11. When you move from equator to pole, the value of acceleration due to g...

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  12. When the radius of earth is reduced by 1% without changing the mass, t...

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  13. Weight fo a body of a mass m decreases by 1% when it is raised to heig...

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  14. Acceleration due to gravity at earth's surface if 'g' m//s^(2). Find t...

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  15. The mass of moon 1% of mass of earth. The ratio of gravitational pull ...

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  16. imagine a new planet having the same density as that of earth but it i...

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  17. The change in the value of g at a height h above the surface of the ea...

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  18. If the speed of rotation of earth about its axis increases, then the w...

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  19. A body weighs W newton at the surface of the earth. Its weight at a he...

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  20. The imaginary angular velocity of the earth for which the effective ac...

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