Question

Which of the following has more inertia: a) A rubber ball and a stone of the same size? b) A bicycle and a train? c) A five rupees coin and a one rupee coin​

Answer 1

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.

Answer 2

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• Inertia depends on mass of the body.

1. A rubber ball and a stone of the same size?

• A stone will have more mass than a rubber ball of the same size.
• Since, more mass means more inertia.
• The inertia of the stone will be more than the rubber ball.

2. A bicycle and a train?

• A train will have more mass than a bicycle
• Since, more mass means more inertia.
• The inertia of train will be more than a bicycle.

3. A five rupees coin and a one rupee-coin?

• A five rupees will have more mass than one rupees coin
• Since, more mass means more inertia.
• The inertia of five rupees will be more than one rupees coin.