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The angular frequency of a fan of moment...

The angular frequency of a fan of moment of inertia `0.1kgm^2` is increased from 30rpm to 60rpm when a torque of `0.03Nm` acts on it. The number of revolutions made by the fan while the angular frequency is increased from 30rpm to 60rpm

A

`7.855 rev`

B

`6.855 rev`

C

`5.855 rev`

D

`8.855 rev`

Text Solution

Verified by Experts

The correct Answer is:
A
`tau=Ialpha,omega^(2)-omega_(0)^(2)=2alphatheta,theta=2piN`
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