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Question
Define friction. Give two examples of the utility of friction in day-to-day life.
Solution
Friction: Friction is a force that slows down moving objects or prevents stationary objects from moving.
Examples of the utility of friction in day-to-day life.
- Cars and buses are able to move safely on the road because of friction between the treaded tires and the surface of the road.
- We are able to write on paper only with the help of friction between the pencil or pen and paper.
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