Question:
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?
(CBSE 2012)
Solution:
Density of steel is more than that of aluminium and wood, so its mass is greater than the solids made of aluminium and wood. Inertia depends on the mass of object. Hence, steel has the highest inertia.