Question

What is the angular momentum of an object with a mass of `5 kg` that moves along a circular path of radius `8 m` at a frequency of `6 Hz`?

Answer 1

The angular momentum is `=12063.7kgm^2s^-1`

Explanation:

The angular momentum is `L=Iomega`

where `I` is the moment of inertia

The mass of the object is `m=5kg`

The radius of the path is `r=8m`

The moment of inertia of the object is given by

`I=mr^2`

`=5*8^2= 320 kgm^2`

The frequency is `f=6Hz`

The angular velocity is `omega=2pif=2*6*pi=12pirads^-1`

The angular momentum is

`L=Iomega=320*12pi=12063.7kgm^2s^-1`