The design of a new road includes a straight stretch that is horizontal and flat but that suddenly dips down a steep hill at $18 ^\circ$. The transition should be rounded with what minimum radius so that cars traveling 95 km/h will not leave the road (Fig. 5–40)?
Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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