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  • There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia?

There are three solids made up of aluminium, steel and wood, of the same shape and same volume. Which of them would have highest inertia?

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Sol.

By Newton’s first law, we understand that everybody has the property of inertia. Inertia opposes the change in the state of rest or uniform motion.
Physically this property of inertia can be seen as the mass of the body. Hence the property of inertia will be more if Mass is more.

As the three objects taken in this question, have the same size and shape, it means their volume is equal. We know that mass of any body is equal to the product of density and volume. Therefore, we can claim that the object with maximum density will have maximum mass and thus maximum inertia. Therefore, steel will have maximum inertia.

Posted by

Gurleen Kaur

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