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w=m x g
= 60 x 10
= 600 N
panjang lengan kuasa = 2+1 =3 m
⇒Penyelesaian:
km=km
panjang lengan kuasa/panjan lenngan beban = w/F
3/1 = 600/F
600/F=3
1/F =3/600
F =600/3
=200 N (D)
*Maaf jika ada kesalahan*