AIPMT | 2015Rotational MotionEasy
Question
A rod of weight W is supported by two parallel knife edges A and B and is in equilibrium in a horizontal position. The knives are at a distance d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is :-
Options
A.
B.
C.
D.
Solution
By torque balancing about B
NA(d) = W(d-x)
⇒ NA =
Hence option (3)
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