Inertia of a body depends on:(A) Mass of the body(B) Velocity of the body(C) Acceleration of the body(D) Energy of the body

The correct answer is (A) Mass of the body.
Detailed Explanation:
Inertia is the property of a body to resist any change in its state of motion or rest. It is solely dependent on the mass of the object.
• Mass: The greater the mass of a body, the more inertia it possesses. For example, a heavy truck requires more force to start moving or to stop than a small car because the truck has more mass and thus more inertia.
The other options do not directly affect inertia:
• Velocity: Inertia is not dependent on the velocity of the body. Even a stationary object (with zero velocity) has inertia due to its mass.
• Acceleration: Acceleration is a result of an external force acting on a body, but it does not determine the inertia. Inertia remains constant as it depends only on mass.
• Energy: While energy (like kinetic energy) can depend on velocity and mass, it does not directly relate to inertia. Inertia is a fundamental property of matter linked to mass, irrespective of energy.
Thus, inertia depends only on the mass of the body.