Question

1 kg of iron or 1 kg of rubber ball which have more inertia . give reason to support your answer

Answer 1

BONJOUR,
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1 kg of iron will have more inertia because mass is directly proportionally to the inertia higher the mass so inertia will also be higher.

Answer 2

ur ans is given below

both will have Same Inertia under ideal conditions

reason -
Inertia depends on mass
mass and inertia are directly proportional
here as the mass of both iron and rubber is same, the Inertia will remain the same

My opinion -

in case where we r considering friction, the Inertia of rest of rubber will be more than that of iron due to its material surface which is contradicting to iron with metallic surface