Example of desirable and undesirable friction
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Desirable friction - the friction of tire against pavement that moves the car forward. Undesirable friction
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Exampes of desirable friction:
Friction makes it possible to walk
We can write on blackboard because due to friction some chalk particles get stuck and we see the thing written.
Examples of undesirable friction:
A lot of energy is wasted in overcoming friction in machineries.
It results in wear and tear of objects like our soles of shoes get damaged.
Hope it helps......
Friction makes it possible to walk
We can write on blackboard because due to friction some chalk particles get stuck and we see the thing written.
Examples of undesirable friction:
A lot of energy is wasted in overcoming friction in machineries.
It results in wear and tear of objects like our soles of shoes get damaged.
Hope it helps......
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