You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 11-m-high hill, then descends 18 m to the track's lowest point. You've determined that the spring can be compressed a maximum of 2.2 m and that a loaded car will have a maximum mass of 450 kg. For safety reasons, the spring constant should be 10% larger than the minimum needed for the car to just make it over the top. Part A What spring constant should you specify? Express your answer with the appropriate units. ► View Available Hint(s) k= Submit Part B V = μÅ Value What is the maximum speed of a 370 kg car if the spring is compressed the full amount? Express your answer with the appropriate units. ► View Available Hint(s) Submit μA Value Units ? Units ?
You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 11-m-high hill, then descends 18 m to the track's lowest point. You've determined that the spring can be compressed a maximum of 2.2 m and that a loaded car will have a maximum mass of 450 kg. For safety reasons, the spring constant should be 10% larger than the minimum needed for the car to just make it over the top. Part A What spring constant should you specify? Express your answer with the appropriate units. ► View Available Hint(s) k= Submit Part B V = μÅ Value What is the maximum speed of a 370 kg car if the spring is compressed the full amount? Express your answer with the appropriate units. ► View Available Hint(s) Submit μA Value Units ? Units ?
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 108CP: Consider a linear spring, as in Figure 7.7(a), with mass M uniformly distributed along its length....
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