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The balades of a windmill sweep out a ci...

The balades of a windmill sweep out a circle of area A. If the wind flows at a velocity v perpendicular to the circle, then the kinetic energy of the air is

A

`(1)/(2) A rho vt`

B

`(1)/(2)A rho v^(2)r`

C

`(1)/(2)A rho v^(3)t`

D

`2A rho v^(3)t`

Text Solution

Verified by Experts

The correct Answer is:
C
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