How to find the resultant force, if two forces are equal in 4H, and the angle between their vectors is 60 degrees

To find out the resultant force, consider the formula: Frx = √ (Fc1 ^ 2 + Fc2 ^ 2 + 2 * Fc1 * Fc ^ 2 * cosφ), where Fc1 is the first acting force (Fc1 = 4 N); Fc2 – the second acting force (Fc2 = 4 N); φ is the angle between the vectors of the given forces (φ = 60º).

Let’s calculate: Frh = √ (Fc1 ^ 2 + Fc2 ^ 2 + 2 * Fc1 * Fc2 * cosφ) = √ (4 ^ 2 + 4 ^ 2 + 2 * 4 * 4 * cos 60º) ≈ 6.93 N.

Answer: The resultant force, according to the calculation, is 6.93 N.