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Question
A falt curve on a highways has a radius of curvature 400 m. A car goes around a curve at a speed of 32 m/s. What is the minimum value of the coefficient of friction that will prevent the car from sliding? (g = 9.8 m/s2)
Numerical
Solution
`v^2/R = μg`
`μ= v^2/(Rg)`
`= (32)^2/(400 xx 9.8)`
=`1024/3920`
= 0.261
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Banking of Roads
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