Question

Write ways to decrease friction. (any three with examples).

Answer 1

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For decreasing friction ,we should use:-

• By making the surface smooth:- Example-In machine, many surface are smooth so that machine cannot break quickly.
• By using lubricants:- Example-Lubricants like oil or greece are used to decrease the friction
• By using ball bearings:-Example- Ball bearing are used in machines to reduce friction.

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Answer 2

Answer: three ways to decrease friction are;

Explanation 1:Lubrication is another way to make a surface smoother.  2; A lubricant is a slippery substance designed to reduce the friction between surfaces.  

3;Make the object more streamlined. A streamline shape is one that allows air or water to flow around it easily, offering the least resistance.