Question

A fan moves at 350 rpm. Find average speed of the tip in minutes if the blade length from the centre is 1m

Answer 1

The angular velocity is w.

Lets calculate it :

350 rev per minute

How many revolutions per second?

350 / 60 = 5.83 revolutions per second.

One revolution = 2π

Angular velocity = 2 π × 5.83 = 11.66π radians

The linear velocity = rw

Where r = radius, w=angular velocity

V = 1 × 11.66π = 36.63 m/s