(i) What is friction ? Name the types of friction .
(ii) Plot a graph between force of friction and the applied force .
(iii) Which frictional force is also called self adjusting force ?
(iv) Name any two methods of reducing friction .
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Explanation:
A: Friction (like friction drag) is a contact force which results from two surfaces contacting each other. Static friction is considered a self adjusting force because it wants to the objects to remain at rest and not move. ... At this point, static friction becomes kinetic friction and the object begins to move.
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