Question
A car when passes through a convex bridge exerts a force
on it which is equal to-Solution
Suppose that the body exerts a force N on the surface when it travels through the convex surface. The forces on the car is mg downwards and N upwards. Hence the total force mg−N will provide the essential centripetal acceleration to the car. ⇒ mg - N = mv2/R ⇒ N= mg- mv2/R
Statement: W>Y<X<Z=U>S; W<T ≥V
I. Y<T
II. X > V
Statements: R ≥ S > T; U < V ≤ T; V > W
Conclusions:
I. R > V
II. W < S
 III. T > W
Statements: O< V ≤ N = P < S, R = Z ≥ Y = X > O
Conclusions:
I. R > N
II. X > P
III. R > O
Statements: X < H = U ≤ I < N = M, M > B ≥ V
Conclusions:
I. I > V
II. U ≥ MStatements: C = A ≤ H < K ≥ L = Q; S = T ≥ K
Conclusion: I. C < T II. A = S
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Statemen...
In which of these expression ‘O ≤ F’ is definitely true?
