Question

What is moment of Inertia? (a simple definition)
And why is 'moment of inertia' the 'mass' in rotational motion?
As I=mr²
But when you relate other physical terms like velocity
v=rω and the relation of acceleration with angular acceleration is a=rα
Then why do we square 'r' in moment of Inertia?
Shouldn't it be
I=mr?

Answer 1

Answer:

a quantity expressing a body's tendency to resist angular acceleration, which is the sum of the products of the mass of each particle in the body with the square of its distance from the axis of rotation is movement of inertia

Explanation:

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Answer 2

Answer:

a measure of the resistance of a body to angular acceleration about a given axis that is equal to the sum of the products of each element of mass in the body and the square of the element's distance from the axis.

Explanation:

m

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