Constructing the shear diagram
Considering the segment
from x = 4 m to x = 6 m
area under shear
diagram = +31.20 kN-m
concentrated
moments = 0.00 kN-m
change in bending
moment = +31.20 kN-m
at x = 4 m, M = -16.80 kN-m
change in bending
moment = +31.20 kN-m
at x = 6 m, M = -14.40 kN-m