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Physics
Problem
A car when passes through a convex bridge exerts a force on it which is equal to :- (1)
M
g
+
M
v
2
r
Mg + \frac{Mv^2}{r}
M
g
+
r
M
v
2
(2)
M
v
2
r
\frac{Mv^2}{r}
r
M
v
2
(3)
M
g
Mg
M
g
(4) none of these
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