Whatis frictional force? Suggest and briefly explain
three methods by which friction can be minimized
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1
Answer:
Friction opposes motion. By applying grease and oil. By fixing ball bearings. By polishing the surface.
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Explanation:
Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism. Instead, scientists believe it is the result of the electromagnetic attraction between charged particles in two touching surfaces.
Friction can be reduced by making the surface smooth by polishing.
2)Friction can be reduced by applying lubricants (like oil or grease) to the rubbing surface.
3)Friction can be reduced by using wheels to move objects.
4)Friction can be reduced by using ball bearing between the moving parts of machine.
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