If the overbridge is concave instead of being convex, the thrust on the road at the lowest position will be
If the overbridge is concave instead of being convex, the thrust on the road at the lowest position will be
- A
$mg + \frac{{m{v^2}}}{r}$
- B
$mg - \frac{{m{v^2}}}{r}$
- C
$\frac{{{m^2}{v^2}g}}{r}$
- D
$\frac{{{v^2}g}}{r}$
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