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A body starting from rest gains an angul...

A body starting from rest gains an angular speed of `540` r.p.m in `6` second. The angular acceleration of the body is

A

`3pi` rad/sec

B

`9pi` rad/sec

C

`18pi` rad/sec

D

`54pi` rad/sec

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The correct Answer is:
A
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ERRORLESS -ROTATIONAL MOTION-Practice Problems (Problems based on angular displacement, velocity and acceleration)
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  2. The angula speed of a fly-wheel making 120 revolutions /minute is :

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  9. A strap is passing over a wheel of radius 30 cm. During the time the w...

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