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  4. If the over-bridge is concave instead of being convex, the thrust on the road at the lowest position will be

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Q. If the over-bridge is concave instead of being convex, the thrust on the road at the lowest position will be

NTA AbhyasNTA Abhyas 2020Laws of Motion

Solution:

Solution

Thrust at the lowest point is $N$
$N=F_{P}+mg$
$N=mg+\frac{m V^{2}}{R}$