mass of the ball at 0.0097 Kg, “r” represents the geometric radius of the ball at 0.01272 m, and “r’” represents the effective rolling radius of the ball at 0.01018 m. Speeds at two points on one of our team's rollercoaster are 3.18 and 3.12 m/s respectively. Calculate track length in between if the points are at the same height.

mass of the ball at 0.0097 Kg, “r” represents the geometric radius of the ball at 0.01272 m, and “r’” represents the effective rolling radius of the ball at 0.01018 m. Speeds at two points on one of our team's rollercoaster are 3.18 and 3.12 m/s respectively. Calculate track length in between if the points are at the same height.