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

The balades of a windmill sweep out a circle of area A. If the wind fl

1.	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
Answer» `(1)/(2) A rho vt` `(1)/(2)A rho v^(2)R` `(1)/(2)A rho v^(3)t` `2A rho v^(3)t` ANSWER :C