Question

in which case do you need smaller force and why rolling and sliding​

Answer 1

Answer:

couldn't understand at all...

Answer 2

Answer:

Explanation:

The force of friction depends on the area of contact between the two surfaces. As the area of contact is less in the case of rolling than in the case of sliding, rolling friction is less than the sliding friction. Rolling friction is the resistance to motion experienced by a body when it rolls upon another. It is much less than sliding friction for the same pair of bodies.