A)
1N+4N=5N
6N-5N=1N
B)
1N+6N=7N
7N-2N=5N
1)
F₁ = 1 N (←)
F₂ = 4 N (←)
F₃ = 6 N (→)
Fw = F₃ - (F₁ + F₂)
Fw = 6 N - (1 N + 4 N) = 6 N - 5 N = 1 N (→)
2)
F₁ = 2 N (←)
F₂ = 1 N (→)
Fw = F₃ + F₂ - F₁
Fw = 6 N + 1 N - 2 N = 5 N (→)
