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← HistoryWhich risk increased disproportionately upon Viking longships using rope bridges for rapid troop deployment?
A)Shear stress on bridge anchors
B)Torsional stress within braided ropes✓
C)Bridge deck planking hydrostatic uplift
D)Rope material thermal expansion
💡 Explanation
Torsional stress significantly increased due to the varying gaits of multiple soldiers traversing simultaneously. This leads to rope twisting and inter-strand friction, because forces are nonuniform rather than evenly distributed; therefore, rope failure risk increased rather than just linear bridge failure or thermal effects.
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