The frame which is made of Al alloy 6 900 T37 is supporting SON m a point load and a point moment as shown in figure 58 Given the geometry and loads find the internal reactions at point D Note that there are pins at points A B and C To receive full points you must show all your work including appropriate Free Body Diagram used to calculate any external reactions you deem necessary as well as that used for the internal reactions 1 m 1 B Im D 400 N 0 5 m hs 2 m Figure 58 Frame with external loads made from Al a 6 000 TOT