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Q: A road has a design speed of 20 m/s and the radius of the horizontal curve is equal to 250 m. Design the super-elevation that is needed on this road, with lateral friction coefficient value of 0.15. (Take g = 10 m/s².)
  • A. 0.09
  • B. 0.22
  • C. 0.16
  • D. 0.07
Correct Answer: Option D -
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Explanations:

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