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A body rotates about a fixed axis with a...

A body rotates about a fixed axis with an angular acceleration of `3 rad//s^(2)` The angle rotated by it during the time when its angular velocity increases frm 10 rad/s to 20 rad/s (in radian) is

A

50

B

100

C

150

D

200

Text Solution

Verified by Experts

The correct Answer is:
A
`omega^(2)- omega_(0)^(2) = 2alpha theta `
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NARAYNA-SYSTEM OF PARTICLES AND ROTATIONAL MOTION -EXERCISE - I (C.W)
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  2. A body rotating with uniform angular acceleration covers 100 pi (radia...

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  3. A body rotates about a fixed axis with an angular acceleration of 3 ra...

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  4. A wheel starts from rest and acquires an angular velocity of 60 rad//...

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  5. Two moving particles P and Q are 10 apart at any point . Velocity o...

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  6. Two particle move in concentio cireles of radii r(1) and r(2) such tha...

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  7. A stationary wheel starts rotating about its own axis at uniform rate ...

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  8. A table fan , rotating at a speed of 2400 rpm is switched off and th...

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  11. A weightless rod is acted on by upward parallel forces of 2 N and 4N e...

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  13. Two bodies of mass 1 kg and 2 kg are attached to the ends of a 2 me...

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  14. If the radius of gyration of a solid disc of mass 10 kg about an axis ...

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  15. A hoop of mass 500gm & radius 10cm is placed on a nail, then the momen...

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  16. The ratio of moments of inertia of two solid spheres of same mass but ...

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  17. The radius of a solid sphere is R and its density D. When it is made t...

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  18. Three particles of masses 1gm, 2gm & 3gm are at 1cm, 2cm & 3cm from th...

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  19. The radius of gyration of body is 18cm when it is rotating about an ax...

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  20. The position of axis of rotation of a body is changed so that its mome...

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