Question

What is the moment of inertia of a pendulum with a mass of `7 kg` that is `3 m` from the pivot?

Answer 1

`I = 63kgm^2`

Explanation:

Moment of inertia is the product of mass and distance squared,

`I = mr^2`

Here the mass is `7` and the distance is `3`, so

`I = 7 xx 3^2 = 7 xx 9 = 63kgm^2`