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.
-
A.
10.5N -
B.
11.0N -
C.
17.3N -
D.
20.0N
Correct Answer: Option D
Explanation
10 – P sin 30 = 0
10 – P x 0.5 = 0
P = 20N