Answer:

Inertia is the property of matter that resists changes in its state of rest or motion. It is directly proportional to mass. The more massive an object is, the more inertia it has. In this question, a plate, a ball, and a child have the same mass. Let's discuss which one has more inertia.

Explanation:

What is Inertia?

Inertia is a property of matter that resists changes in its state of rest or motion. It is a fundamental concept of physics and is defined as the tendency of an object to remain in its current state of motion or rest unless acted upon by an external force. Inertia is directly proportional to mass. The more massive an object is, the more inertia it has.

Comparison of Inertia between a Plate, a Ball, and a Child:

In this question, a plate, a ball, and a child have the same mass. But, they have different shapes and sizes that affect their inertia.

Plate:

- A plate is a flat, thin, and rigid object.
- It has a lower inertia compared to a ball or a child because it has less volume and its mass is distributed along its surface.
- Its shape and size make it easier to change its state of motion or rest compared to a ball or a child.

Ball:

- A ball is a round and compact object.
- It has a higher inertia compared to a plate because it has more volume and its mass is concentrated at its center.
- Its shape and size make it harder to change its state of motion or rest compared to a plate or a child.

Child:

- A child has a complex shape and variable size.
- It has a higher inertia compared to a plate because it has more volume and its mass is distributed throughout its body.
- Its shape and size make it harder to change its state of motion or rest compared to a plate but easier compared to a ball.

Conclusion:

In conclusion, a ball has more inertia compared to a plate and a child because of its shape and mass distribution. A child has more inertia compared to a plate because of its shape and volume. Therefore, the correct answer to this question is (d) ball.

All Have Equal Intertia