I we curves are marked with a suggested speed. If the speed is based on what wou

Question

I we curves are marked with a suggested speed. If the speed is based on what would be safe in wet weather, estimate the radius of curvature for in the unbanked for an curve marked 60 km/h. Express answer in one significant figure and include the appropriate units. I we curves are marked with a suggested speed. If the speed is based on what would be safe in wet weather, estimate the radius of curvature for in the unbanked for an curve marked 60 km/h. Express answer in one significant figure and include the appropriate units.

Explanation / Answer

acceleration a = u*g

radial aceleration = v^2/r

v = 60 km/h = 60*(5/18) = 16.67 m/s

u*g = v^2/r

0.5*9.8 = 16.67^2/r

r = 56.7 m <<-------answer

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