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Question: If the overbridge is concave instead of being convex, the thrust on the road at the lowest position ...

If the overbridge is concave instead of being convex, the thrust on the road at the lowest position will be

A

mg+mv2rmg + \frac{mv^{2}}{r}

B

mg−mv2rmg - \frac{mv^{2}}{r}

C

m2v2gr\frac{m^{2}v^{2}g}{r}

D

v2gr\frac{v^{2}g}{r}

Answer

mg+mv2rmg + \frac{mv^{2}}{r}

Explanation

Solution

Thrust at the lowest point of concave bridge

= mg+mv2rmg + \frac{mv^{2}}{r}