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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

`(Wd)/x`

B

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

C

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

D

`(Wx)/d`

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