friction is both a friend and an evil in our daily life
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friction is a friend like it help us to walk if there is no friction then we can slip and don't able to walk it also help us to to write on a black board i.e adequate friction b\w chalk and board...secondly it is an evil because it is unnecessary to wear and tear of machines parts..
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Friction plays an important part in many everyday processes. For instance, when two objects rub together, friction causes some of the energy of motion to be converted into heat. This is why rubbing two sticks together will eventually produce a fire. This is because of friction.
One the other hand, friction is also responsible for the wear and tear on bike gears and other mechanical parts. That's why lubricants, or liquids, are often used to reduce the friction and wear and tear between moving parts.
One the other hand, friction is also responsible for the wear and tear on bike gears and other mechanical parts. That's why lubricants, or liquids, are often used to reduce the friction and wear and tear between moving parts.
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