A fan located at a rate of 382 revolutions per minute. The linear speed at the very edge of the fan blade is 18,336 pie inches per minute. What is the length of each fan blade on the fan?

Answer 1

The length would be the radius, r, of the fan circle.

v = rω

v = 18,336π inches/min

ω = 382(2π) rad/min

r = v/ω = 18336/764 = 24.65 inches