Answer:
(a) A stone of the same size as rubber ball has more mass. As mass is a measure of inertia, therefore, stone has more inertia than a rubber ball.
(b) A train has greater inertia than a bicycle, because train is much heavier than a bicycle.
(c) A five-rupees coin is heavier than a one-rupee coin. Therefore, inertia of five-rupees coin is more than the inertia of one-rupee coin.
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