Question

A fan making 600 revolution per minutes.if it makes 1200 revolution per minutes. What is the increase in it’s angular velocity

Answer 1

f1=600rpm=600/60=10rps

f2=1200rpm=1200/60=20 rps

w1=2πf1=2×3.14×10=62.8

w2=2πf2=2×3.14×20=125.6

increase in w=125.6-62.8=62.8

I hope this helps ( ╹▽╹ )