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A disc of radius 2m and mass 200kg is ac...

A disc of radius 2m and mass 200kg is acted upon by a torque 100N-m. Its angular acceleration would be

A

`1 "red/sec"^2`

B

`0.25 "red/sec"^2`

C

`0.5 "red/sec"^2`

D

`2 "red/sec"^2`

Text Solution

Verified by Experts

The correct Answer is:
B
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MOTION-ROTATIONAL MOTION -Exercise - 1
  1. The torque needed to produce an angular acceleration of 18rad/"sec"^2 ...

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  2. The product of moment of inertia (I) and angular acceleration (alpha) ...

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  3. A disc of radius 2m and mass 200kg is acted upon by a torque 100N-m. I...

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  4. The dimensions of torque are :

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  5. On applying a constant torque on a body-

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

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

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  8. The radius of gyration of a body depends upon

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  9. Equivalent to force in rotational motion is

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  10. Torque/moment of inertia equals to

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

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

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

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

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

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

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

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

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

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

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