Kinematics Question 712

Question: If the overbridge it’s concave instead of being convex, the thrust on the road at the lowest position will be

Options:

A) $ mg+\frac{mv^{2}}{r} $

B)$ mg-\frac{mv^{2}}{r} $

C) $ \frac{m^{2}v^{2}g}{r} $

D)$ \frac{v^{2}g}{r} $

Show Answer

Answer:

Correct Answer: A

Solution:

Thrust at the lowest point of concave bridge = $ mg+\frac{mv^{2}}{r} $



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