kk mgon bntuanny no 14 y pakai crany oke !!!

diketahui:
w = 480N
F = 160N
Lb = 25cm

dijawab:
cari Lk nya dulu
F.lk = w.lb
160.lk = 480.25
160lk = 12.000
lk = 12000÷160
lk = 75cm

beban digeser 10cm mendekati titik tumpu
25cm-10cm = 15cm

f.lk = w.lb
f.75cm = 480.15
75f = 7200
f = 96N

F = 160-96 = 64
maka, kuasa dikurangi 64N