Question

which of the following has more intertia:
(a) rubber ball or a stone of the same size
(b) a bicycle or train ?
(c) a five -rupee coin or a one -rupee coin?​

Answer 1

Answer:

A. a stone

B. a train

C. a five rupee coin

Answer 2

Well, inertia depends on the mass of the body. Inertia increases with increase in mass. $\quad$

(a) In the case of a rubber ball or a stone of same size, the stone will have more mass than rubber ball. Hence stone has more inertia.

(b) Train is larger and much heavier than bicycle, right? Thus train has more inertia.

(c) A five - rupee coin is much thicker than a one - rupee coin. Hence five - rupee coin has more inertia.