An `L` shaped thin uniform rod of total length `2l` is free to rotate in a vertical plane about a
Channel: Doubtnut
Date: 2020-07-26

An `L` shaped thin uniform rod of total length `2l` is free to rotate in a vertical plane about a horizontal axis a `P` as shown in the figure. The bas is released from rest. Neglect air and contact friction. The angular velociyt at the instant it has rotated through `90^@` and reached the dotted position shown is