Question

explain why objects moving in fluids must have special shapes

Answer 1

when an object moves in fluid, fluid friction opposes the motion. so to reduce the friction between object and fluids. by giving object and special shape,the forces of friction acting on it can be minimised by giving them streamlined shape.eg boat

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Answer 2

Answer:

The amount of friction an object experiences can be reduced by giving it a unique shape. As a result, moving through the fluid is much simpler for the body.

Fluid friction happens when fluid layers move in relation to one another. Viscosity refers to this internal flow restriction. In common parlance, a fluid's viscosity is referred to as its "thickness". All actual fluids are viscous because they all have some sharing resistance.

The following qualities describe liquids: ambiguous shape (takes the shape of its container).

The shapes of objects moving in fluids are created in a specific way, known as a streamlined shape, to reduce the drag (friction) provided by fluids.

Moving things move more easily in fluids thanks to their streamlined shapes.

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