1.

Write down three ways of minimizing friction.

Answer»

1. By using lubricants: These are applied to surfaces to reduce the friction between the surfaces. Example Oil, wax, grease and castor oil. 

2. With the help of polishing the surface: We sprinkle fine powder on the carrom board and then we polish its surface to make smooth so that the striker slides easily on the surface.

3. By using ball bearing: We use leadshots in bearing of a cycle hub because rolling friction is smaller than sliding friction.



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