Q: What is friction that acts on objects while it is rolling over a surface called?


Read this paragraph and choose the correct option from the provided answers:

Rolling friction is friction that acts on objects when they are rolling over a surface. Rolling friction is much weaker than sliding friction or static friction. This explains why most forms of ground transportation use wheels, including bicycles, cars, 4-wheelers, roller skates, scooters, and skateboards. Ball bearings are another use of rolling friction. You can see what they look like in the Figure below . They let parts of a wheel or other machine roll rather than slide over on another.

 Choices:

- blowing friction

- opposing friction

- surface friction

- rolling friction


A:
rolling friction