An L shaped frame is free to rotate in a vertical plane about a horizontal axis passing through a smooth hinge O. Each side of the frame has a length L and mass m. Frame is let to fall with one side horizontal and the other vertical. With what speed the end A will strike the ground ?

An L shaped frame is free to rotate in a vertical plane about a horizo

1.	An L shaped frame is free to rotate in a vertical plane about a horizontal axis passing through a smooth hinge O. Each side of the frame has a length L and mass m. Frame is let to fall with one side horizontal and the other vertical. With what speed the end A will strike the ground ?
Answer» `SQRT(GL)` `2sqrt(gL)` `3.2 sqrt(gL)` `1.6 sqrt(gL)` ANSWER :A