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A uniform rod AB of mass 2 kg is hinged ...

A uniform rod `AB` of mass `2 kg` is hinged at one end `A`. The rod is kept in the horizontal position by a massless string tied to point `B`. Find the reaction of the hinge (in `N`) on end `A` of the rod at the instant when string is cut. `(g = 10 m//s^(2))`

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