STATIC EQUILIBIRUM GRADED ASSIGNMENT: SHOW ALL STEPS CLEARLY AND IN DETAILED FOR FULL MARKS DON'T SKIP STEPS
(QUESTION 4) worth 35-marks
12 in.
12 in.
-5 in
B
C
D
E
12 in.-
This rigid structure is in static equilibrium.
Point A is hinged, single cable CED is continuous, and the pulley
at E is frictionless.
Find the maximum allowable magnitude P (Ib) and determine
which constraint below dictates the solution:
• Resultant Reaction At A ? 1200 lb
• Cable Tension ? 750 lb
Assume the dimension a = 3 in.
Hints:
1. Assume $P = 1$ lb and solve for the resultant reaction at A and cable
tension
2. Recognizing that the equations are linear and scale proportionally to $P$,
determine which constraint fails first