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
Answers
Answered by
6
Answer:
option c is the correct sequence
Answered by
6
A. Wet marble floor, Dry marble floor, Newspaper, Towel
Explanation:
Friction is a phenomenon which resists motion when an object is rubbed against another. Friction is reduced if we want increase the speed of motion. Contrarily, friction needs to be increased in case where you want to reduce or control the speed of motion. Using lubrication is one way to reduce friction.
A wet floor has the least friction, followed by the dry marble floor. Then comes the newspaper. The towel has the highest friction because of its rough surface.
Option A is the answer.
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