Ramon and Sally are observing a toy car speed up as it goes around a circular track. Ramon says, "The car’s speeding up, so there must be a net force parallel to the track." "I don’t think so," replies Sally. "It’s moving in a circle, and that requires centripetal acceleration. The net force has to point to the center of the circle." Do you agree with Ramon, Sally, or neither.
I agree with sally because, There are components of force both parallel to the track to cause the speed up and perpendicular to the track to maintain circular motion. The net force is the vector sum of the two.
