Question

A rotating fan completes 1100 revolutions every minute. consider a point on the tip of a blade, at a radius of 0.18 m. through what distance does the point move in one revolution?

Answer 1

We don't need the angular speed to solve this exercise. In fact, the distance covered by the point in one revolution corresponds to one circumference of radius r, with r being the radius at which the point is located. Therefore, the distance covered by the point in one revolution is
$d=2 \pi r = 2 \pi (0.18 m)=1.13 m$