WAEC - Physics (2013 - No. 43)

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

53.N

21.0N

7.0N

5.0N

Vertical resultant = 10 - 6 = 4N

Horizontal resultant = 20 - 17 = 3N

R = \(\sqrt{3^2 + 4^2}\)

= 5N