A car when passes through a convex bridge exerts a force on it which is equal to

$m g + \frac{m v^{2}}{r}$

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$\frac{m v^{2}}{r}$

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$M g$

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None of these

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Solution

The correct option is D
None of these

$F = m g - \frac{m v^{2}}{r}$

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A car when passes through a convex bridge exerts a force on it which is equal to

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