Answer:
P = 100 lbs in tension
F = 125 lbs in shear force downward direction
Moments are: 50 lb-ft and 125 lb-ft both in counter clockwise direction
Step-by-step explanation:
Forces
If we consider the entire structure as a system with two external forces P and F acting on it.
Translating these forces at point E,
Hence point E experiences the following forces:
P = 100 lbs in tension
F = 125 lbs in shear force
Moments
The bending moments are caused by the forces acting at respective offsets from point E
P = 100 lbs causes a bending moment of Mp = 100 lbs * (6/12) ft = 50 lb-ft
F = 125 lbs causes a bending moment of Mf = 125 lbs*(12/12)ft = 125 lb-ft
Moments are: 50 lb-ft and 125 lb-ft
