Four co-planar forces of magnitudes 10N, 17N, 6N and 20N act at point O as shown in the above diagram. Determine the magnitude of the resultant force
Attached Figure / Diagram
A
53.N
B
21.0N
C
7.0N
D
5.0N
Verified Correct Answer: D.
Physical Principles & Numerical Solution
Vertical resultant = 10 - 6 = 4N
Horizontal resultant = 20 - 17 = 3N
R = \(\sqrt{3^2 + 4^2}\)
= 5N
Source: Myschool Past Questions Archive (Record #35730)