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As shown in the figure, a block of mass ...

As shown in the figure, a block of mass `sqrt(3)kg` is kept on a horizontal rough surface of coefficient of friction `(1)/(3sqrt(3))` .The critical force to be applied on the vertical surface as shown at an angle `60^(@)` with horizontal such that it does not move, will be `3x` .The value of `x` will be `(g=10m/s^(2);sin60^(@)=(sqrt(3))/(2);cos60^(@)=(1)/(2))`

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