The shapes of cars and planes are streamlined. Why?

Cars and aeroplanes are streamlined. Why?

Along a streamline

Define streamline .

Along a streamline,

Along a streamline,

Explain why the shapes of high-speed vehicles are streamlined ?

Why are cars, aeroplanes and rockets streamlined ?

Assertion : Cars and aeroplanes are streamlined. Reason : This is done to reduce the backward drag due to atmosphere.