A cantilever beam of span 6 m is propped at 2 m from a free end. It carries a uniformly distributed load of 10 kN/m over its entire span as shown in the given figure. Determine the free bending moment at B in the span BC.
1
-24 kNm
2
+20 kNm
3
-20 kNm
4
24 kNm