# What is the angular momentum of an object with a mass of #5 kg# that moves along a circular path of radius #4 m# at a frequency of # 4 Hz #?

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##### 1 Answer

Sep 9, 2016

I'll illustrate it below.

#### Explanation:

The mass of the object is

Now, frequency is

But, we know that, angular frequency

Thus,

Now, we have the relation from elementary dynamics that,

Further,

We have now deduced an expression for the angular momentum

All you have to do now is plug in the values and get the final result. I won't be doing it for you though.

I'm leaving it as an exercise.

I hope it helped.