Question

A ball is rolling in North direction in which direction does the friction force act

Answer 1

Answer:

Explanation:Now for front wheel it is the case similar to a wheel where force (here propelling force acting towards north as car is moving towards north) is applied at centre of mass, so friction will act towards south because of its opposing nature but in course of doing so it also produces moment in clockwise direction causing .

Answer 2

Answer:

If ball is rolling towards North Direction then friction acts towards South direction

Explanation:

friction acts in opposite direction to motion

here motion is towards north

opposite of north is south

so friction is acting towards south