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What is the mechanical advantage of the pulley system shown in figure ? Assume the movable pulley and strings are of negligible weight.
Now force P needed for lifting the weight Wis only W/2because strings on both sides 2ndpulley will have tention of W/2 manking upward total force equal to W.
bro this problem is stated to for calculating out the the tensions in the given strings via A and B
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