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f1+f2=50N+20N=70N
b)F1-F2=50N-20N=30N
proszę:D
b)F1-F2=50-20[N]=30[N]
Fw=F1+F2
Fw=50N+20N=70N
b)
Fw=F1-F2
Fw=50N-20N=30N