the friction between the shoes of a jogger and the jogging track the friction between the wheels of a car and the surface of a road the friction between a rotating pulley and the axle that supports the pulley the friction between a rotating pulley and the rope that is used with the pulley
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In which of the following cases would a decrease in friction be most beneficial?
Possibilities:
- the friction between the shoes of a jogger and the jogging track
- the friction between the wheels of a car and the surface of a road
- the friction between a rotating pulley and the axle that supports the pulley
- the friction between a rotating pulley and the rope that is used with the pulley

the friction between a rotating pulley and the axle that supports the pulley