# What is the moment of inertia of a pendulum with a mass of #7 kg# that is #4 m# from the pivot?

##### 1 Answer

Jan 13, 2016

#### Answer:

#### Explanation:

Assuming this is a simple pendulum, ie the mass and dimensions of the pendulum bob is small compared to its overall dimensions, we may simple approximate its moment of inertia as follows :

(If however the pendulum is compound, then one would need to use alternative formulae involving centre of mass and precise definitions of