Friction a Necessary Evil | Hindi | Friction | Physics | Class 8

What is the first thing you do when you feel cold? There are two possibilities here: either you cover yourself with a warm blanket or you rub your hands against each other to feel warm. Now, the question is why? How do our hands get warm when we rub them against each other? Well, ‘Friction’ is created by rubbing our hands that generates heat. This makes us feel warm. So, what is ‘Friction’? Why is it necessary? Let’s study more about it.
#friction #frictionforce #physics
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