Answer:
Resultant = 3.05N
Explanation:
[tex]r = \sqrt{{5}^{2} + 5^{2} - 2(5)(5) \cos(120) } [/tex]
[tex]r = \sqrt{25 + 25 - 50(0.8142)} [/tex]
[tex]r = \sqrt{50 - 40.71} = \sqrt{9.29} [/tex]
[tex]r = 3.05[/tex]
