Question

engineers work to design a race cars exterior to decrease air resistance. which feature would help decrease air resistance?

increasing the size of the rearview mirrors

increasing the height of the vehicle

a box - like exterior frame

a stream - lined exterior frame

Explanation:

To decrease air resistance, an object's shape should allow air to flow smoothly around it. A streamlined shape minimizes turbulence and drag. Increasing mirror size, vehicle height, or using a box - like frame would increase air resistance as they disrupt smooth air flow. A streamlined exterior frame is designed to reduce air resistance.

Answer:

D. a stream - lined exterior frame