Question

on the basis of fluid friction (drag) explain why the following have different shapes. 1 submarine, 2 passenger plane, 3 jet plane, 4 fighter planes, 5 propeller ​

Answer 1

Explanation:

Frictional drag is the opposing force of body and fluid's relative motion that tend to reduce its forward motion. For unstreamlined objects, frictional drag would distort their movement in fluids, but for streamlined bodies like the fighting plane, jet plane, passenger plane, propeller and submarine, their body shapes enable them to comfortably glide swiftly in their respective fluids despite a significant frictional drag acting on their bodies.