To overcome or minimize air fluid friction the bodies are given special shapes. Which of the following shape helps to reduce air drag?

cubical shape

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triangular shape

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streamlined shape

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pentagonal shape

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Solution

The correct option is C streamlined shape
The frictional force exerted by fluids is called fluid friction. To minimize or overcome air fluid friction, the bodies are given special shapes. Example: streamlined shape. Aeroplanes, bullet trains have streamlined curve surface to reduce air drag.

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