A wind turbine works by slowing the air that passes its blades and converting much of the extracted kinetic energy to electric

Question

A wind turbine works by slowing the air that passes its blades and converting much of the extracted kinetic energy to electric energy. A large wind turbine has
45-m-radius blades. In typical conditions, 86,000 kg of air moves past the blades every second. If the air is moving at 12 m/s before it passes the blades and the wind turbine extracts 40% of this kinetic energy, how much energy is extracted every second?

Kunduz · Accepted Answer

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