Question

Aeroplanes are designed so to:- * Increase friction
To decrease friction
Both of the above
None of the above​

Answer 1

Answer:

decrease friction from air

Answer 2

Answer:

To reduce fluid friction

Explanation:

Aeroplanes, boats, fishes and birds which move through fluids have bodies of special shape, called streamlined shape, so as to reduce the friction due to fluid and avoid energy loss.

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