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Title: A roller coaster is traveling at 3 m/s when it is 60 m above the ground. What is the speed when the Post by: cloveb on Oct 3, 2017 A roller coaster is traveling at 3 m/s when it is 60 m above the ground. What is the speed when the roller coaster is 30 m above the ground? Assume that friction and air resistance can be ignored.
(1) 24 m/s (2) 6 m/s (3) 34 m/s (4) 12 m/s (5) Cannot be determined without knowing the mass of the roller coaster. PHY2053, Summer 2012 Exam |