Each particle in the body moves in a circle with linear velocity, that is, each particle moves with an angular acceleration. In rotational motion, a body rotates about a fixed axis. So we have studied that inertia is basically mass. Because the heavier one has more mass, it resists change more, that is, it has more inertia. For instance, it is easier to throw a small stone farther than a heavier one. More the mass of a body more is the inertia. But what causes inertia in a body? Let’s find out. What is Inertia? It is the property of a body by virtue of which it resists change in its state of rest or motion.
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