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[itex]x=\frac{2Yl-6Plmg}{3Y}[/itex]

Can some one check if my assumptions are right?..

First of all they want me to show the velocity is 0..

I use conservation of energy

[itex]\frac{Yl}{18}=\frac{Yx_1^2}{2l}+\frac{1}{2}mv^2[/itex]

where [itex]x_1=\frac{2Yl-6Plmg}{3Y}-\frac{l}{3}[/itex]

After that I get into big muddle as they don't equal to 0

thanks.