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Answer to Question #37256 in Mechanics | Relativity for alzahra

Question #37256
A roller-coaster car is moving at 20 m/s along a straight horizontal track. What will its speed be after climbing the 15-m hill shown in the figure, if friction is ignored?

http://edugen.wileyplus.com/edugen/courses/crs3976/art/qb/qu/c06/q40-1.png
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