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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 is in equilibrium in a horizontal position. The knives are at a dist once d from each other. The centre of mass of the rod is at distance x from A. The normal reaction on A is

A

`(W(d-x))/(d)`

B

`(Wx)/(d)`

C

`(Wd)/(x)`

D

`(W(d-x))/(x)`

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A
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