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A wind turbine’s blades are 28 m long and rotate at 21RPM. Find the rotational speed...

A wind turbine’s blades are 28 m long and rotate at 21RPM. Find the rotational speed of the blades in radians per second.

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Answer #1

rotational speed = W = 21 RPM

                                   W = 21 * 2 Pie / 60

                                   w = 21 * 2* 3.14 / 60

                                  w = 2.198 rad /sec = 2.2 rad /sec

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