Dik:
F1=50N
F2=40N
F3=-70N
Dit:
∑F?
Jwb:
∑F= F1+F2+F3
∑F=50 N+ 40 N+ (-70N)
∑F=20 N.
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Dik:
F1=50N
F2=40N
F3=-70N
Dit:
∑F?
Jwb:
∑F= F1+F2+F3
∑F=50 N+ 40 N+ (-70N)
∑F=20 N.