What is the moment of inertia of a pendulum with a mass of $3$ $kg$ that is $5$ $m$ from the pivot?

Question

1846 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-06-12T21:47:14

The moment of inertia for a single mass $m$ , placed $r$ metres from the pivot, is given by:

$I = mr^2 = 3xx5^2=75$ $kgm^2$

What is the moment of inertia of a pendulum with a mass of 33 kgkg that is 55 mm from the pivot?