Question

Which will have greater inertia amongst three balls, A, B and C filled with same volume of mercury, water and air respectively? Give reason to support your answer.

Answer 1

Ball A will have the greatest inertia because mercury is denser then water and air.

Denser means more mass and mass is directly proportional to inertia which means if the mass increases inertia also increases.

Inertia here means resistance of a matter to change in the state of motion.

It includes change in speed, direction or rest.