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Grade: 10
        
Why does frcition not depend on surface area in contact?
3 years ago

Answers : (2)

Varad Rane
21 Points
							Since pressure equals force divided by the area of contact, it works out that the increase in friction generating area is exactly offset by the reduction in pressure; the resulting frictional forces, then, are dependent only on the frictional coefficient of the materials and the FORCE holding them together.
						
3 years ago
Varad Rane
21 Points
							Frictional force is dependent on the weight of the body. It has got nothing to do with the area of contact. Any change in the surface area of the body does not affect its weight.
						
3 years ago
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