Which constraint on Viking rope-bridges limited troop deployments?

💡 Explanation

Synchronized marching induced destructive resonance because the frequency approached the bridge's natural frequency, therefore, collapse was possible if troops marched in step, rather than if troops crossed randomly.

• Which limitation spurred late medieval plate armor advancements?
• Which consequence resulted when Inca message runners lost damaged quipu?
• Which mechanism contributed to Viking longships' sailing speeds given unpredictable arctic winds?
• Which material vulnerability increases when casting large bronze cannons?
• During a Roman aqueduct's construction within uneven terrain, which risk significantly increases due to localized water pressure?
• Which consequence results when the ancient Chinese attempted to increase the rate of fire of early gunpowder rockets beyond design limits?