Given that w1 = 4 kN/m, w2 = 3.5 kN/m and a = 1.5 m, a) Determine the internal normal force (in kN), internal shear force (in kN), internal bending moment (in kN.m) at point D of the two-member frame. b) Determine the internal normal force (in kN), internal shear force (in kN), internal bending moment (in kN.m) at point E of the two-member frame. A W1 a D a a + E a 0 B W2 V N M Sign convention of internal loads for vertical member