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An automobile engine develops 100H.P. wh...

An automobile engine develops 100H.P. when rotating at a speed of 1800 rad/min. The torque it delivers is

A

`3.33 W-s`

B

` 200 W-s`

C

`248.7 W-s`

D

`2487 W-s`

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The correct Answer is:
D
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MOTION-ROTATIONAL MOTION -Exercise - 1
  1. The moment of inertia and rotational kinetic energy of a fly wheel are...

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  2. A disc of radius 1m and mass 1 kg is rotating with 40 radians/sec. the...

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  3. An automobile engine develops 100H.P. when rotating at a speed of 1800...

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  4. A ring of diameter 1m is rotating with an angular momentum of 10 Joule...

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  5. A body is rotating uniformly about a vertical axis fixed in an inertia...

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  6. A torque of 2 newton-m produces an angular acceleration of 2 rad//sec^...

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  7. The torque applied to a ring revolving about its own axis so as to cha...

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  8. The rate of change of angular momentum is called

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  9. The angular velocity of a body changes from one revolution per 9 sec...

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  10. If a person sitting on a rotating stool with his hands outstretched, s...

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  11. The rotational kinetic energy of a rigid body of moment of inertia 5 ...

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  12. A circular ring of mass 1kg and radius 0.2m executes 10 revolutions pe...

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  13. Which quantity is not directly related with rotational motion

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  14. A particle of mass m is rotating in a plane in circular path of radius...

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

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  16. The rotational kinetic energy is -

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  17. A rigid body is rotating about an axis. The best way to stop it is app...

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  18. A constant torque acting on a uniform circular wheel changes its anglu...

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  19. The rate of change of angular momentum is called

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  20. When a constant torque is applied on a rigid body, then

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