2. (a)Determine if each of the following pin-jointed frameworks is statically determinate, redundant or a mechanism (unstable). If they do not comply with the configuration for statically determine pin-jointed frames, please indicate what modification(s) is/are required to make them comply? A E B C Fig. Q2a(i) D E F B C Fig. Q2a(ii) D A EQ E B C Fig. Q2a(iii) D Answer Frame 2a(i) 2a(ii) 2a(iii) Assessment r=3, j=15, m=27, dof=30 m+r=2j, statically determinate m+r=dof, stable r=3, j=16, m=30, dof=32 m+r>2j, statically indeterminate m+r>dof, stable r=3, j=15, m=26, dof=30 m+r