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Rolling Friction

Is there any ...

Question

Is there any case in which friction depends upon the surface area of both the objects in contact ?

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Solution

Friction depends on the surface area in contact. That is why rolling friction is less than sliding friction because the area in contact is less in rolling.

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Similar questions

Is frictional force dependent of surface area of object in contact

Q. The angle of contact in case of liquid depends upon which of the following?

Q. The friction between two surfaces does not depend on one of the following. This one is:
(a) amount of surface area of the two objects which is in contact with each other
(b) weight of the object which tends to move on the surface of other object
(c) degree of smoothness of surfaces of two objects in contact with each other
(d) degree of roughness of surfaces of two objects in contact with each other

Q. Is friction dependent of surface area of contact ?

Which of the following is/are true about frictional force?

1. It depends on the nature of the surface in contact.

2. It always opposes relative motion between two objects.

3. It is a contact force.

4. It is a non- contact force.

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