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Block A mass 6 kg and block Z are attach...

Block A mass 6 kg and block Z are attached to a rope which passes over a pulley A foce p=50N is applied horizontally to block A , Keeping it in contact with a rough vertical face The coeffcients of static and Kinetic friction is on the verge of slipping upward .THe mass of mass of block X is `alpha kg` Find `alpha`

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