Which of the following statement is correct regarding inertia?

I. Inertia is the natural tendency of an object to resist a change in its state of motion or of rest.

II. The mass of an object is a measure of its inertia.

Both l and ll

The correct answer is option 4. Both l and ll.

The correct statement regarding inertia is Both I and II.

I. Inertia is indeed the natural tendency of an object to resist a change in its state of motion or of rest. This means that an object will continue to remain at rest or move with a constant velocity unless acted upon by an external force. This property of inertia is described by Newton's first law of motion.

II. The mass of an object is indeed a measure of its inertia. Mass is a measure of the amount of matter in an object, and objects with greater mass have greater inertia. This means that they are more resistant to changes in their state of motion or rest. In other words, mass quantifies the inertia of an object.

Therefore, both statements are correct.