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← HistoryA Roman ballista failing to launch requires what adjustment?
A)Increase torsion spring binding force✓
B)Decrease projectile mass uniformly
C)Reduce ambient moisture content
D)Lengthen release trigger arm size
💡 Explanation
Insufficient range indicates lost energy transfer. Reducing torsion spring binding (PRE-tension) reduces energy; increasing it maximizes stored energy transmitted by the **elastic restoring force**, therefore increasing spring tension gives more kinetic energy rather than less to fling the projectile.
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