Tolong dijwb nom1,2&3 hari ini dikmpul 1.w=200Ns=13m=1300cmh=5m=500cmkm=s/h =1300/500 =2,6kalif=km.w =2,6 . 200 =520N2.s/h =4/300 =300/4 =75w=km.f =75.60 =4500N