Question

Which of the following has more inertia? A football or stone of the same size.

Answer 1

1. The inertia of a body may be defined as the property of a body to resist any change in its state of rest or of uniform motion in a straight line is called its inertia.
2. It is easier to move a small and light object than a large and heavy one.
3. Thus, a large/heavy body shows greater resistance to changing its state of rest or of uniform motion than smaller/lighter bodies.
4. Thus, a heavier body has more inertia than a lighter body.
5. Therefore, we can say that “the larger the mass, the larger is the inertia, and smaller the mass, the smaller is inertia.”
6. In other words, we can say that “the mass of a body is a measure of its inertia.”
7. A stone of the size of a football has more mass than a football. So, a stone of the size of a football has more inertia than a football.