a cantilever beam subjected to two point loads as shown in the given diagram. Find the shear force and bending moment

1. SF = 10 kN, BM = 80 kN-m
2. SF = 50 kN, BM = 8000 N-m
3. SF = 50 kN, BM = 50 kN-m
4. SF = 50000 N, BM = 80 kN-m      (Ans)