A uniform square plate of mass m is sup...

A uniform square plate of mass m is supported with its plane vertical as shown in the figure. Assume the centre of mass is on a horizontal the passing through A. If the cable at B breaks then just after that the angular acceleration of the plate is

`(3g)/(2sqrt2b)`

`(3g)/(sqrt2b)`

`(g)/(sqrt2b)`

`(2g)/(sqrt3b)`

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