Question

give tow examples that friction is necessery for everyday activities​

Answer 1

Answer:

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

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.

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.

Explanation:

Hence, friction is a necessity in our daily life.