A fan rotates at 100 rpm. Find its angular velocity and linear velocity if tip of its blades is 0.20 m away from the axis of rotation.
Frequency = ʋ
ʋ = 100 rpm
= 100/60 s-1
= 5/3 Hz(s-1)
Angular velocity = ω
= 2*π*ʋ
= 2 × 3.14 × 5/3
= 10.47rad s-1
r = 0.20m
Linear velocity v = ω*r
= 10.47 × 0.20
= 2.094ms-1