更新1:
1) Determine the required height h of the roller coaster so that when it is essentially at rest at the crest of the hill it will reach a speed of 92 km/h when it comes to the bottom. 2) Also, what should be the minimum radius of curvature ρ for the track at B so that the passengers do not experience a normal force greater than 4mg = (39.24m) N? Neglect the size of the car and passenger. For image: https://session.masteringengineering.com/problemAsset/1646820/3/Hibbler.ch14.p15.jpg
