Question

A vehicle is travelling with uniform speed along concave road and then along convex road of same radius of curvature. If the normal reaction on the vehicle is half of its weight as it reaches highest point of convex road, then normal reaction on the vehicle as it reaches lowest point of concave road is:

A
twice weight of vehicle
B
thrice weight of vehicle
C
1.5 times weight of vehicle
D
2 times weight of vehicle
Solution
Verified by Toppr

In case of convex
mgN2=mV2R(1)
In case of concave
N1mg=mV2R(2)
Given N2=mg2
In(1),mg2=mV2R
put it in - (2)
N1mg=mg2
N1=32mg

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