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A circular disc is rotating about its ow...

A circular disc is rotating about its own axis at constant angular acceleration. If its angular velocity increases from 210 rpm to 420 rpm during `21` rotations then the angular acceleration of disc is

A

`5.5 "rad//s"^(2)`

B

`1 "rad/s"^(2)`

C

`16.5 "rad/s"^(2)`

D

`22 "rad/s"^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`alpha = (omega_(2)^(2)-omega_(1)^(2))/(2theta)`
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