Question

What is the moment of inertia of a pendulum with a mass of `8 kg` that is `3 m` from the pivot?

Answer 1

The moment of inertia is `=72kgm^2`

Explanation:

The mass of the pendulum is `m=8kg`

The distance from the pivot is `r=3m`

The moment of inertia is

`I=mr^2=8xx3^2=72kgm^2`