A car when passing through a convex bridge ex | vedclass

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Question

(D) When a car of mass $M$ moves over a convex bridge of radius $r$ with a velocity $v$,the forces acting on the car are its weight $Mg$ acting downwa

Vedclass · Accepted Answer

$Mg - \frac{Mv^2}{r}$

Vedclass · Answer

(D) When a car of mass $M$ moves over a convex bridge of radius $r$ with a velocity $v$,the forces acting on the car are its weight $Mg$ acting downwards and the normal reaction $N$ from the bridge acting upwards.The net centripetal force required for circular motion is provided by the difference between the weight and the normal reaction:$Mg - N = \frac{Mv^2}{r}$Therefore,the normal reaction $N$ exerted by the car on the bridge is:$N = Mg - \frac{Mv^2}{r}$Thus,the correct option is $D$.

$A$ car when passing through a convex bridge exerts a force on it which is equal to:

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