Question

For the same pair of bodies, what is the correct order of the magnitude of different types of friction?

• A. Static friction > Sliding friction > Rolling friction
• B. Sliding friction > Rolling friction > Static friction
• C. Static friction > Rolling friction > Sliding friction
• D. Sliding friction > Static friction > Rolling friction

Answer 1

The correct option is A Static friction > Sliding friction > Rolling friction

• When a body is sliding, its contacting surface does not get enough time to lock onto the contact points of the other surface. Therefore, sliding produces less friction as compared to static friction.
• It is always easier to roll a body over another than slide it. So, rolling friction is further less than sliding friction.
• Ultimately, the correct order is given as: Static friction > Sliding friction > Rolling friction.