Question

question 11 1 pts helmets must be made of fiberglass or ____.
○ rubber
○ reinforced plastic
○ metal
○ extruded polystyrene

Explanation:

Helmets need materials that are strong, lightweight, and can absorb impact. Fiberglass is a strong, lightweight material. Reinforced plastic also has similar properties suitable for helmet construction (providing strength and impact resistance). Rubber is too flexible and not rigid enough for structural helmet needs. Metal is heavy and can cause more injury on impact. Extruded polystyrene is a foam - like material, too soft for helmet structural requirements. So the correct option is Reinforced plastic.

Answer:

B. Reinforced plastic