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} $
