Fly wheel

Calculate the mean angular velocity,ω of flywheel in earth having flywheel mass 40kg, diameter 10cm and mass of rings 500g, diameter of axle at 3.6cm, no. of chord 7.

how can i measure h

Bearing frictions considered?

What is the difference between n1 & n2 ?

t is the time period for n1 or n2?

How you are going to find r

What are C and d in this experiment ?