Aroller coaster engineer is trying to design a new coaster to build at the theme park. the cars, when loaded with people, is expected to have a mass of 8000. he wants his roller coaster cars to be going 10 m/s when it reaches the bottom. assuming that friction is negligible, how high up should the roller coaster start?


then answer
well, it turns out that friction is not negligible, the engineer figured out that the car is going to lose 32000 joules energy as it goes down the track. this means that he has to start up even higher. what is the actual starting height after taking into account the energy loss from friction?



you soo much : d

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