Question

Massa: 50kg
Lengan beban: 50cm
Lengan kuasa: 100cm
F: ?

Answer 1

M = 50 kg
g = 10m/s
w = m . g
   = 50 . 10 = 500 N
Lb = 50 cm
     = 0,5 m
Lk = 100 cm
     = 1 m
F?
F . Lk = Lb . w
  F . 1 = 0,5 . 500
       F = 250 N

Answer 2

Diketahui =
m = 50 kg
Lb = 50 cm
     = 0,5 m
Lk = 100 cm
     = 1 m
g = 10 N/kg

ditanya = 
F = ...

dijawab =
W = m . g
    = 50 kg . 10 N/kg
    = 500 N
W / F = Lk / Lb
F = W . Lb / Lk
   = 500 N . 0,5 m / 1 m
   = 250 N