Question

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 order will be

• 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

Answer 1

Answer: (A)

wet marble floor, dry marble floor, newspaper and towel.

Answer 2

Generally, the order of the force of friction from the least to the greatest is:

1. Wet marble floor: Friction is usually lower on wet surfaces compared to dry surfaces.
2. Dry marble floor: Moderate friction.
3. Newspaper: Friction is typically higher on dry surfaces compared to smooth surfaces like newspaper.
4. Towel: The towel would likely have the highest friction among the given options as it is a rough and absorbent surface.

Therefore, the correct order in increasing force of friction is (A): Wet marble floor, dry marble floor, newspaper and towel.