Initial data: F1 (first acting force) = F2 (second acting force) = 600 N; α (angle, which are formed by the vectors of acting forces) = 120º.
The resultant of the two acting forces is determined using the trigonometric method of adding vectors: F = √ (F1 ^ 2 + F2 ^ 2 – 2F1 * F2 * cos (180 – α)).
Let’s perform the calculation: F = √ (600 ^ 2 + 600 ^ 2 – 2 * 600 * 600 * cos (180 – 120)) = 600 N.
Answer: The resultant of the two acting forces is 600 N.
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