Question

What is the moment of inertia of a pendulum with a mass of `9 kg` that is `7 m` from the pivot?

Answer 1

The moment of inertia is `=441kgm^2`

Explanation:

The moment of inertia is

`I=mr^2`

The mass of the pendulum is `=9kg`

The distance from the pivot is `r=7m`

Therefore,

`I=9*7^2=441kgm^2`