Steps to find moment of inertia of a point mass.

The moment of inertia of point mass m at a distance r from the axis of rotation is given by I = mr^{2}. A point mass does not have a moment of inertia around its own axis, but using the parallel axis theorem a moment of inertia around a distant axis of rotation is achieved.

Let us learn here how to find moment of inertia of a point mass (m) at a distance (r) rotating around its own axis.**Formula:****Moment of inertia of point mass I = mr**^{2}

Where**,**

m = Mass

r = Radius**Step 1:** Assume that the point mass of an object is 20kg at distance 5cm**Step 2:** Applying values in the formula,

Moment of inertia of point mass I = m x r^{2}

I = 20 x 5^{2}

I = 20 x 25

I = 500

Moment of Inertia of a Point Mass Calculation using this online Calculator

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