You spill a bucket of soapy water on a marble floor accidently. Would it make easier or more difficult for you to walk on the floor? Why?
The more the roughness the high the friction. When there is soap water on a surface there would be less roughness on it. When there is less roughness, there would be less friction. So because of less friction, it is difficult to walk on a soap water surface.
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A boy runs his 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, 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
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
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