nomor 1 tolong harus disetor besok

1)
A.
Lk = 4 m
Lb = 1 m
W = 3.000 N

W/F = Lk/Lb
3.000/F = 4/1
F = 3.000/4
F = 750 N

Km = Lk/Lb
Km = 4/1
Km = 4

B)
Lk = 3 m
Lb = 40 cm = 0,4 m
F = 1.200 N

W/F = Lk/Lb
W/1.200 = 3/0,4
W = 1.200 × 3/0,4
W = 3.600/0,4
W = 9.000 N

Km = W/F
Km = 9.000/1.200
Km = 7,5

C)
Lb = 5 cm = 0,05
F = 80 N
W = 5.600 N
Km = 5

W/F = Lk/Lb
5.600/80 = Lk/0,05
Lk = 5.600 × 0,05/80
Lk = 280/80
Lk = 3,5 m

D)
Lk = 50 cm = 0,5 m
F = 10 N
W = 200 N

W/F = Lk/Lb
200/10 = 0,5/Lb
Lb = 5/200
Lb = 0,025 m