tolong di jawab ya .....

A. W/F = lf/lw
200 N / f = 2 m/ 0.5 m
200 N × 0.5 m/2m = F
F = 100 N× 0.5 = 50 N -> gaya yg diperlukan utk mengangkat beban
B. KM = w/f = 200 N / 50 N = 4
Atau
KM= Lf/lw = 2 m / 0.5 m = 4