Which consequence results when Vikings attempting coastal navigation experience unfavorable 'head' winds?

💡 Explanation

Oars provide supplementary propulsion when encountering headwinds because the Vikings deployed oar power to maintain progress perpendicular to opposing forces using manpower rather than sails, therefore offsetting drift, rather than directly tacking.

• Which outcome increased risk resulted from improperly designed Inca terracing?
• Which consequence resulted from early iron gunpowder artillery cannons experiencing thermal cycling?
• Which measurement error increases in a sextant if its mirrors are not perfectly perpendicular to its frame?
• Which construction risk drastically increases when mortar setting accelerates excessively in traditional Inca stone masonry?
• Which behavior becomes increasingly significant when timber longship hull stiffness decreases?
• Which functional outcome directly relies on the stereographic projection method perfected for planispheric astrolabes?