Question

A hollow sphere with a mass of 12 kg and a radius of 34 cm is rotating with a constant angular speed of 25 rad/s about an axle through its center. What is the angular momentum of this rotating sphere?

Answer 1

2550kgm/s

Step-by-step explanation:

Angular momentum is given as

P=mv

And V=w²r

W=25rad/s

r=34cm approx. 0.34m

V= 25²X 0.34

V=212.5m/s

To find the angular momentum,

P=mv

P= 12 X 212.5

P=2550kgm/s