contestada

5) The blade of a wind turbine are 224 feet long. what is the distance
traveled by a point on it's tip as the blade rotates 5/4 of a revolution?

Respuesta :

altavistard

Answer:

Step-by-step explanation:

first note that 5/4 of a revolution comes out to (5/4)(2π) radians, or

5/8 radian.  Thus, the distance traveled by the point is

s = rФ, where r is the radius and Ф is the angle through which the blade rotates.  Here we have:

s = (224 ft)(5/4)π ft

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