If you are given four blocks, aluminium block, glass block, iron block and wood block. Which has the maximum inertia and why?

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Solution

Among all the blocks of same volume as given in the question, iron block will have maximum inertia.
Reason is that, density of iron is maximum, so, in a given volume, iron block will have maximum mass.
And we know that, inertia is directly proportional to the mass, so the right answer is iron block.

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