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A ceiling fan having moment of inertia 2...

A ceiling fan having moment of inertia `2 kg-m^(2)` attains its maximum frequency of 60 rpm in `'2 pi'` seconds. Calculate its power rating

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`omega_(0)=0, omega=2 pi n =2 pixx2=4 pi" rod/s"`
`alpha =(omega-omega_(0))/(t) =(4pi-0)/(2 pi) =2" rad/s"^(2)`
`therefore P = tau cdot omega = I alpha cdot omega = 2xx2xx4 pi`
`=16 pi" watt "~=50" watt"`
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