Physics Help Forum Statics problem - determine the minimum weight

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 Jul 8th 2017, 02:28 PM #1 Junior Member   Join Date: Jul 2017 Posts: 1 Statics problem - determine the minimum weight I have two balls in a tube one a top of another zig zag postioned determine the minimum weight at which the tube wont tip over https://kek.gg/i/kpfvV.jpg r1=r2=120mm or 0.12m D=400mm=0.40m G=200N What I managed to get : r3=r1+r2=0.24m length between AB=D-r3=0.16m cosα=r3/(r1+r2)=2/3 cosα^-1=48.19 sinα=sin(48.19)=0.75 right force = left force bottom reaction = G = 200N .∑Fx=0 F[AB]cos(48.19) - F[D]=0 F[D]=F[AB]cos(48.19) = 179N .∑Fy=0 F[AB]sin(48.19) - F[G]=0 F[AB]sin(48.19) = 200 F[AB]=268N ∑M=? W=? I dont know how to set up the momentum

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