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A uniform wooden plank with a mass of 75kg and length of 5m is placed on top of a brick wall so that 1.5m of plank extends beyond the edge hanging freely in air. how far beyond the edge of the wall can a 100kg woman walk before the plank began to rotate about the edge of the wall
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A uniform wooden plank with a mass of 75kg and length of 5m is placed on top of a brick wall so that...
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