Question

A football and a stone has same mass i. both have same inertia ii. both have same momentum iii. both have different inertia iv. both have different momentum

Answer 1

Given that,

A football and a stone has same mass.

Suppose, a football and stone is solid sphere.

The radius of sphere is r.

We know that,

Moment of inertia :

The moment of inertia of solid sphere is defined as,

The moment of inertia is equal to the product of mass and radius.

In mathematically,

$I=MR^2$

Here, football and stone as a solid sphere

We need to calculate the moment of inertia of football

Using formula of moment of inertia of solid sphere

$I=\dfrac{2}{3}MR^2$

Put the value into the formula

$I=\dfrac{2}{3}mr^2$

If a football and a stone has same mass then the moment of inertia will be same.

Hence, both have same inertia

(I) is correct option.

Answer 2

Answer:

I)))same inertia