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Mathematics 16 Online
OpenStudy (anonymous):

the roller coaster car shown in the diagram takes 23.5 s to go up the 23 degree incline line AH and only 2.8 s to go down the drop from h to c. the car covers horizontal distances of 180 ft on the incline and 60 ft on the drop. How fast (in ft/s) does the car go up the incline?

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