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please help with these 2 mechnics questions watch

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    1) a uniform rod ab of mass 10kg and length 2m rests with A on smooth horizontal ground and B on a smooth peg 1m above the ground. The rod is help in position by a horizontal form pN at A. Find the value of P and the magnitude of the reaction at A and B. 2) a uniform ladder of W rest at an angle alpha to the horizontal with its top against a rough vertical wall and its base on rough horizontal ground, with coefficient of friction 0.25 at each contact. Find the min value of alpha if the ladder does not slip
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    These questions have already been posted in the maths section, where they are being dealt with.
 
 
 
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