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The frictional force always acts ____________ to the surface of the application of the friction.

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in Engineering Mechanics by (701k points)
The frictional force always acts ____________ to the surface of the application of the friction.

(a) Tangential

(b) Perpendicular

(c) Parallel

(d) Normal

The question was posed to me in class test.

The doubt is from Characteristics of Dry Friction topic in division Friction of Engineering Mechanics

1 Answer

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Best answer
The correct option is (a) Tangential

To elaborate: The friction is the phenomena that defines that there is a resistance which is present there between the two surfaces. This friction is applied tangentially to the surfaces in contact. Thus the main thing is that the forces on both of the surfaces act as a tangential to each other.

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