A football has lesser inertia than a stone of the same size because:

Options

A. football has more air inside than the stone
B. football has less air inside than the stone
C. football has less mass than the stone
D. football has more mass than the stone

Explanation

To solve the question "A football has lesser inertia than a stone of the same size because:", we need to understand the concept of inertia and how it relates to mass.

### Step-by-Step Solution:

1. **Understanding Inertia**: Inertia is the property of an object to resist changes in its state of motion. The greater the mass of an object, the greater its inertia. This means heavier objects are harder to move or stop than lighter objects.

2. **Comparing Mass**: The question states that a football and a stone are of the same size. However, we need to compare their masses. Generally, a football is made of lighter materials and is hollow, while a stone is solid and typically heavier.

3. **Identifying the Correct Option**:
- Option 1: Football has more air inside than the stone - This is incorrect because the stone is solid and has no air inside.
- Option 2: Football has less air inside than the stone - This is also incorrect for the same reason as above.
- Option 3: Football has less mass than the stone - This is correct because a football is lighter than a stone of the same size.
- Option 4: Football has more mass than stone - This is incorrect as we established that the stone is heavier.

4. **Conclusion**: Since the football has less mass than the stone, it also has less inertia. Therefore, the correct answer is **Option 3: Football has less mass than the stone**.

### Final Answer:
The football has lesser inertia than a stone of the same size because **the football has less mass than the stone**.

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