Question

The moment of inertia of disc of radius 0.5 m about its geometric axis is 2 kg

Answer 1

it should be the answer

Answer 2

The mass of the disc is 8 kg.

Explanation:

It is given that,

Radius of the disc, r = 0.5 m

Moment of inertia of disc about its geometric axis is, $I=2\ kg-m^2$

It is assumed to find the mass of the disc. We know that the formula of moment of inertia is given by :

$I=mr^2$

m is the mass of the disc

$m=\dfrac{I}{r^2}$

$m=\dfrac{2\ kg-m^2}{(0.5\ m)^2}$

m = 8 kg

So, the mass of the disc is 8 kg. Hence, this is the required solution.

Learn more,

Moment of inertia

https://brainly.in/question/10569897