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rumus : pb.vb = pf. vbf
pb x 0,5 =1000 x 0,1
pb = 200
kedua, baru dicari gaya keatas
rumus
pf / pb = fa /wb
1000/ 200 = fa / 10.000
fa = 50.000 N = 50 KN ( kilo newton )
semoga bermanfaat :)