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Uniform rod AB is hinged at A in the hor...

Uniform rod AB is hinged at A in the horizontal position as shown in Fig. The other end is connected to a block through a massless stsring m as shown. The pulley is smooth and massless. Masses of block and rod are same and equal to m. Then acceleration of the block just after release from the position is 3g/b where 'b' is

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