I we curves are marked with a suggested speed. If the speed is based on what wou
ID: 1476307 • Letter: I
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