how can be friction can be increased or decreased ?
Answers
Answered by
7
Answer:
To increase friction:
By making the surface rough ,friction force can be increased.
Examples of increasing friction-the tyres of a motor car and bicycles are made rough to increase the friction .when a ground or surface become slippery after rain or water splashing it is made rough by spreading sand to increase the friction.
To decrease friction:
(i) Friction between two surfaces can be decreased by using lubricants.
(ii) Friction between two surfaces can be reduced by polishing them. The interlocking and projections are minimized by this method.
Similar questions