If the two rough surfaces are polished and put in contact, the friction force between them will __________.a)increaseb)decreasec)remain constantd)Either increase or decreaseCorrect answer is option 'B'. Can you explain this answer?

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If the two rough surfaces are polished and put in contact, the friction force between them will __________.

a)
increase
b)
decrease
c)
remain constant
d)
Either increase or decrease

Correct answer is option 'B'. Can you explain this answer?

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Test: Introduction to Friction

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Most Upvoted Answer

If the two rough surfaces are polished and put in contact, the frictio...

Friction is the resistance force that opposes relative motion between two objects.
- It is not a fundamental force, like gravity or electromagnetism.
- The direction of friction is always in such a way that it opposes the relative motion
The friction force between two surfaces is due to the roughness of the contact surface.

Explanation:

The friction force between two surfaces is due to the roughness of the contact surface.
When the surfaces are polished, their roughness decreases.
They become smooth.
Hence the friction between them decreases.
So the correct answer is option 2.

Answered by Engineers Club · View profile

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If the two rough surfaces are polished and put in contact, the friction force between them will __________.a)increaseb)decreasec)remain constantd)Either increase or decreaseCorrect answer is option 'B'. Can you explain this answer?

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