Question

Which of the following has more inertia?
A. Bicycle
B. Train

Answer 1

Hint: In order to solve this problem we need to know about inertia. Inertia itself is a tendency to do nothing or something remains unchanged. In this problem, the mass of the train is far larger than that of a bicycle. Knowing these things will solve your problem and will give you the right answers.

Complete step-by-step answer:
Inertia – Inertia is the property of the matter by which it remains at rest or in motion in the same straight line until an external force has acted upon it. A propensity not to shift or to change. Inertia is the intrinsic property of an object that makes it resist any force that might induce a change in its motion. The body at rest and the body in motion are both resistant to forces that may induce acceleration. The inertia of a body may be determined by its mass, which determines its resistance to the action of a force, or by its moment of inertia on a given axis, which measures its resistance to the action of torque on the same axis.
From the above information, we come to know that inertia in simple terms is the inherent property of the material in which the material opposes itself to change its position. So, the inertia of that body will be higher whose mass is more.
So, we come to know that inertia is directly proportional to mass.
Therefore, between train and bicycle train has much more mass therefore the inertia of the train is much more than that of a bicycle.
So, the correct option is B train.

Note: In this problem you just need to know the relation of inertia with the mass in simple terms whose mass is more its inertia will be more. From the word inertia, a very important topic comes under rotational mechanics; that is the moment of inertia it also gives more moment inertia when the masses are larger. Knowing this will solve such types of problems and will give you the right answers.