Alida runs her toy car on dry marble floor, wet marble floor, newspaper and towel spread on the floor. The force of friction acting on the car on different surfaces in increasing orderwill be

Options

A. wet marble floor, dry marble floor, newspaper and towel.
B. newspaper, towel, dry marble floor, wet marble floor.
C. towel, newspaper, dry marble floor, wet marble floor
D. wet marble floor, dry marble floor, towel, newspaper

Explanation

To determine the order of frictional forces acting on Alida's toy car when it runs on different surfaces (dry marble floor, wet marble floor, newspaper, and towel), we need to analyze the roughness of each surface. The frictional force depends on the nature of the surface: smoother surfaces have less friction, while rougher surfaces have more friction.

### Step-by-Step Solution:

1. **Identify the Surfaces**: The surfaces on which the toy car runs are:
- Dry marble floor
- Wet marble floor
- Newspaper
- Towel

2. **Evaluate the Roughness of Each Surface**:
- **Wet Marble Floor**: This surface is smooth and has the least friction because the water reduces the contact between the surfaces.
- **Dry Marble Floor**: This surface is smooth but not as smooth as the wet marble. It has more friction than the wet marble floor.
- **Newspaper**: This surface is rougher than both marble surfaces, leading to increased friction.
- **Towel**: This surface is the roughest among all the listed surfaces, resulting in the highest friction.

3. **Rank the Surfaces Based on Friction**:
- The surface with the least friction is the **Wet Marble Floor**.
- Next is the **Dry Marble Floor**.
- Following that is the **Newspaper**.
- Finally, the surface with the most friction is the **Towel**.

4. **Write the Order of Friction in Increasing Order**:
- Wet Marble Floor < Dry Marble Floor < Newspaper < Towel

### Final Answer:
The order of the force of friction acting on the car on different surfaces in increasing order is:
**Wet Marble Floor < Dry Marble Floor < Newspaper < Towel**