Is it true that friction is both a friend and a foe?

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True

False

answer is A.

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Detailed Solution

The above statement is True.
Friction is the force that opposes the relative motion of two surfaces of an object when they come into contact. Both benefits and drawbacks are associated with friction. When two irregular surfaces come into contact may be harmful. It generates heat and causes energy loss. Such friction is considered bad friction. Most often, low friction is referred to as bad friction.
Advantages of friction:

● Friction enables us to walk freely.

● It helps to support a ladder against the wall.

● It becomes possible to transfer one form of energy to another.

● Objects can be piled up without slipping.

● Breaks of vehicles work due to friction.

So friction is both a friend and a foe.

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