Question

Which friction is minimum?

1 point

Sliding

Rolling

Static

​

Answer 1

Rolling friction is the minimum.

Answer 2

The friction which is the minimum is Option 2nd: Rolling friction.

• The frictional force depends on the surface area of contact between two surfaces.
• The more the contact area, the more frictional force.
• The rolling frictional force is mainly in objects that can roll. This includes spherical objects, wheels, balls, etc.
• In this type of object because of the dimension of the object the area of contact between the object and the ground or the surface is less. This prevents resistive motion and allows the object to roll.
• In the case of sliding friction and static friction more area is contacted between two surfaces and hence the force of friction is also more as compared to rolling.
• Hence, rolling friction is the weakest one here.