Normally when a ball moves, it rolls toward where it goes. But when you spin a ball with its axis vertical to the floor, it somehow still moves. How does it works?

Question

Normally when a ball moves, it rolls toward where it goes. But when you spin a ball with its axis vertical to the floor, it somehow still moves. How does it works?

In: Physics

Answer 1

Since it’s spinning, it’s also by necessity sliding at the point of contact. This lets it move around a little based on the slope of the floor, the direction of the spin, and any linear speed you may have given it.