13 A right triangular plate ABC of mass m is free to rotate

Last updated: 6/13/2023

13 A right triangular plate ABC of mass m is free to rotate in the vertical plane about a fixed horizontal axis through A It is supported by a string such that the side AB is horizontal The reaction at the support A is 1 3 mg 3 mg A 1 B 2 mg 3 4 mg 2