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A wheel starting with angular velocity ...

A wheel starting with angular velocity of 10 radian/sec acquires angular velocity of 100 radian/sec in 15 seconds. If moment of inertia is `10kg-m^(2)` , then applied torque (in newton-metre) is

A

900

B

100

C

90

D

60

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The correct Answer is:
D
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MOTION-ROTATIONAL MOTION -Exercise - 1
  1. The dimensions of torque are :

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  2. On applying a constant torque on a body-

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  3. A wheel starting with angular velocity of 10 radian/sec acquires angu...

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  4. When a steady toqrue or couple acts on a body, the body

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  5. The radius of gyration of a body depends upon

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  6. Equivalent to force in rotational motion is

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  7. Torque/moment of inertia equals to

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  8. The angular velocity of a body is vec (omega)- = 2 hat(i) + 3 hat(j) ...

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  9. A force of (2 hati - 4 hatj + 2 hatk )N act a point (3 hati+2 hatj -4 ...

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  10. A wheel has moment of inertia 5 xx 10^(-3) kg m^(2) and is making 20 "...

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  11. The moment of inertia of a body about a given axis of rotation depends...

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  12. Two rotating bodies have same angular momentum but their moments of in...

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  13. the flywheel is so constructed that the entire mass of it is concentra...

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  14. A stone attached to one end of string is revolved around a stick so th...

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  15. The graph between the angular momentum J and angular velocity omega w...

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  16. Which of the following pairs do not correctly matched ?

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  17. A rotating table completes one rotation is 10 sec. and its moment of i...

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  18. All the particles of a rigid rotating body move in a circular path whe...

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  19. On meltng of ice on the pole of the earth, its moment of inertia will ...

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  20. The wheels of moving vehicles are made hollow in the middle and thick ...

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