Question

what do you mean by streamlined shape how is it useful​

Answer 1

Answer:

pls mark brainliest

A streamlined body is a shape that lowers the friction drag between a fluid, like air and water, and an object moving through that fluid. Drag is a force that slows down motion; friction drag is a special kind of drag. It occurs when the fluid closest to the object sticks to its surface, exerting a force that opposes the object’s motion. Many animals, such as birds and dolphins, and many machines, such as airplanes and submarines, have streamlined bodies to reduce friction drag as they move through either air or water.

Usefulness:

Streamlining your body reduces the friction of movement to a minimum thus decreasing overall drag. For fishes having a streamlined body that is smooth helps save energy it would otherwise have to expend swimming.

Answer 2

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A streamlined body is the one which is pointed at the ends and broad at the middle. Such body when travel through a fluid or gaseous medium, exhibit minimum friction or resistance. E.g. A body shape which is streamlined helps cut against the friction created by the medium around the moving body.

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