A rod `PQ` of mass `M` and length `L` is hinged at end `P`. The rod is kept horizontal by a
Channel: Doubtnut
Date: 2020-01-19

A rod `PQ` of mass `M` and length `L` is hinged at end `P`. The rod is kept horizontal by a massless string tied to point `Q` as shown in the figure. When string is cut, the initial angular accleration of the rod is.