Question

What is the angular momentum of an object with a mass of `4 kg` that moves along a circular path of radius `30 m` at a frequency of `15 Hz`?

Answer 1

The angular momentum is 339120`~~34xx10^4`Joules-sec.

Explanation:

Angular Momentum`L=mr^2omega`

and angular velocity `omega =2pinu`

Now substitute the '`omega`' value in above equation we get,
`=>L=mr^2(2pinu)=2pimnur^2`
Calculating with given numericals we get,
`L=2(3.14)(4kg)(15Hz)(30m)^2= 339,120Js`