Question

why is friction important in our life​

Answer 1

Friction is the force that resists motion when the surface of one object comes in contact with the surface of another. It is also defined as the resistance offered by the surfaces that are in contact with each other when they move over each other.

Examples

We see friction in our day to day activities. Following are the examples of friction in daily life:

1. Walking –We can walk only if we apply frictional force. Friction is what holds your shoe to the ground. The friction present on the ice is very little, this is the reason why it is hard to walk on the slippery surface of the ice.
2. Writing – A frictional force is created when the tip of the pen comes in contact with the surface of the paper. Rolling friction is what comes into play while writing with a ballpoint pen while sliding friction arises when one writes with a pencil.

Answer 2

Answer:

Friction is very important in our life, because without friction we can't walk on a surface. And we able on road because this is only of friction.

Friction : The resistance between two surfaces with one another is called Friction.

Examples of friction : Walking, Running, Car applying brakes,. etc,.

Demerits of friction : If there is more friction in machine it won't be able to work properly. So, to reduce friction we have to apply oil or grease for that.

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Hope it help you.

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