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Modern wind turbines are larger than they appear, and despite their apparently lazy motion, the speed of the blades tips can be quite high-many times higher than the wind speed. A turbine has blades 53 m long that spin at 13 rpm .

At the tip of a blade, what is the speed?

Respuesta :

xero099

Answer:

[tex]v \approx 72.152\,\frac{m}{s}[/tex]

Explanation:

The linear speed of the turbine is:

[tex]v = (53\,m)\cdot (13\,\frac{rev}{min} )\cdot(\frac{2\pi\,rad}{1\,rev} )\cdot (\frac{1\,min}{60\,s} )[/tex]

[tex]v \approx 72.152\,\frac{m}{s}[/tex]

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