Question

select the correct answer. what is the primary force that helps suspension bridges use cables to hold their spans up? a. tension force b. resistance force c. normal force d. elastic force e. applied force

Explanation:

In suspension bridges, cables are under tension as they support the weight of the bridge spans. Tension force is the pulling - like force that acts along the length of the cables to hold the spans up. Resistance force opposes motion, normal force is perpendicular to a surface, elastic force is related to deformation of elastic materials, and applied force is an external force applied to an object. Tension force is the key force here.

Answer:

A. tension force