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  4. A car moves at a constant speed on a road as shown in figure-3.68. The normal force by the road on the car is NA and NB when it is at the points A and B respectively :

Q. A car moves at a constant speed on a road as shown in figure-$3.68$. The normal force by the road on the car is $N_{A}$ and $N_{B}$ when it is at the points $A$ and $B$ respectively :Physics Question Image

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Solution:

Normal reaction at surface will be equal to weight of body minus the centrifugal force on body. So in this case normal force is higher where radius is less hence option (B) is correct.

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