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Friction
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10/05/2021 10:56 am
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Give examples to show that friction is both a friend and a foe.
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10/05/2021 10:57 am
1. Friction is a friend in the following ways - it helps us to walk, to write on the blackboard and to apply the brakes of a car.
2. Friction is a foe in the following ways - it causes wear and tear of machinery and shoes, it produces heat in the machinery.