Why are cars, aeroplanes and rockets streamlined ?
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Answer:
to reduce the friction
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Minimize friction
Explanation:
The friction when something moves through a liquid or gas is called a drag. Shapes that are designed to reduce drag are called streamlined shapes. They resemble a bird in flight or a fish. Cars, airplanes, rockets and speedboats are all shaped in such a way that they are streamlined to reduce maximum drag, so friction is minimum on these objects.
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