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9. In the following diagram, the rod is not attached to the wall, but (hopefully) held in place by friction: т 1s N 0 mg
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9. In the following diagram, the rod is not attached to the wall, but (hopefully) held in place by friction: т 1s N 0 mg
9. In the following diagram, the rod is not attached to the wall, but (hopefully) held in place by friction: т 1s N 0 mg Work out an expression for the minimum coefficient of friction required for the rod to be held in place.
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