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A rod of weight W is supported by two pa...

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

A

`frac(Wx)(d)`

B

`frac(Wd)(x)`

C

`frac(W(d-x))(x)`

D

`frac(W(d-x))(d)`

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