A curve in a road froms an are of radius 800 m If the road is 39.2 m wide Calculate the safe speed for turning if outer edge of the road is 0.5 m higher than the inner edge .

Explanation

Here, ` r = 800 m , l = 39.2 m , upsilon = ? `
` h = 0.5 m . `
For small values of `theta , tan theta = (h)/(l) = upsilon^(2) (rg)`
`v= sqrt((hrg)/(l)) = sqrt((0.5 xx 800 xx 9.8)/(39. 2))`
` upsilon = 10 m//s ` .