Question

what do you mean by Friction is both of a friend and foe ????

Answer 1

Friction can be both friend and foe.
FRIEND:
1 It helps in construction of buildings.
2 It helps in walking on the ground.
FOE:
1 soles of shoe and tyres of vehicles wear out due to friction.
2 friction can also produce heat. so it can damage the machines.

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