The diagram above illustrates three forces acting on an object at point O. If the object is in equilibrium, determine the magnitude of the force P.
Attached Figure / Diagram
A
10.5N
B
11.0N
C
17.3N
D
20.0N
Verified Correct Answer: D.
Physical Principles & Numerical Solution
10 - P sin 30 = 0
10 - P x 0.5 = 0
P = 20N
Source: Myschool Past Questions Archive (Record #34975)