Where do the balls meet if they are started at different heights at the circular track? We notice that the two rolling balls always meet in the middle of the circular track, regardless of their starting Point.
Further informationson the exhibit "Galilean track"
Gravity acts equally on both balls. However, the explanation is the length of the acceleration path of the spheres. The ball, which has to cover a longer distance, can build up a higher acceleration and thus cover the distance in a shorter time. The ball, which has to travel a shorter distance, accelerates accordingly less strongly, and the balls meet in the middle of the track.