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← HistoryWhich mechanical risk increased as Roman siege catapults scaled up to throw larger projectiles?
A)Increased wind resistance on timbers
B)Torsion stress in the frame supports✓
C)Friction losses in the pulleys
D)Material fatigue in projectile casings
💡 Explanation
As scaling increased, greater loads lead to greater shear and bending resulting in increased rotational force causing increased torsion stress in the wooden frame supports because of Hooke's law. Therefore increased torsion risk occurs rather than increased drag, friction or projectile failure which depend on different factors.
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