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w(beban)= 1200N
lk(lengan kuasa)= 200 cm dari 250cm - p. lengan beban(50 cm)
lb(lengan beban)= 50 cm
Ditanyakan: F agar tuas seimbang?
Jawab:
F.lk = w.lb
F.200 = 1200.50
F = 6.50
F = 300 N
Jawabannya: A
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