Question

friction is an evil as it was all disadvantages with no advantages at all true or false​

Answer 1

Answer:

False

Friction acts in the opposite direction which slows the moving object down. This could be an advantage as this can stop a car from crashing as a result of moving too fast. Another advantage is that friction produces heat which can help warm you up on cold days.

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Explanation:

Answer 2

Explanation:

Friction is necessity

(1) It is due to friction between the ground and the feet that we are able to walk.

(2) The brakes of a vehicle cannot work without friction.

(3) Various parts of machines are able to rotate because of friction between belt and pulley.

(4) The tyres of vehicles are made rough to increase friction.

Friction is an evil

(1) Wear and tear of machinery is due to friction.

(2) A large amount of power is wasted in overcoming friction and the effeciency of machines decrease considerably.

(3)Excessive friction between rotating parts of a machine producers enough heat and causes damage to the machinery.

As friction has both advantages and disadvantages,we can say that friction is a necessary evil.

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