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Does the area of contact between the object and the ground affect the amount of force required to move the object if there is friction?

Does the area of contact between the object and the ground affect the amount of force required to move the object if there is friction?

Grade:10

2 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
When there is friction,or we can say that frictional force comes into play,then according to modern view,frictional force is independent of area of contact.This is because with increase in area of contact,force of adhesion also increases in the same ratio.And the adhesive pressure responsible for friction,remains the same.
Aarti Gupta
askIITians Faculty 300 Points
9 years ago
When there is friction,or we can say that frictional force comes into play,then according to modern view,frictional force is independent of area of contact.This is because with increase in area of contact,force of adhesion also increases in the same ratio.And the adhesive pressure responsible for friction,remains the same.

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