Galileo Hypothesized That a Ball Rolling Along a Flat Surface

Multiple Choice

Galileo hypothesized that a ball rolling along a flat surface with no change in speed would _________.

A) have no net force acting on it
B) accelerate, depending on its mass
C) have a net force acting on it, upward from the surface
D) slow down as it rolled down a slope
E) speed up as it rolled up a slope