Answer the following questions.
1) A truck that is stopped on the road has to be pushed hard to get into motion.
When the truck is moving a little, it can be moved faster with a smaller /less
push. Why?
2)The shape of an aeroplane is not kept the same as the shape of the bus. Why?
Answers
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Explanation:
2. An airplane faces a lot of air resistance during it's journey, as compared to a bus. To overcome this enormous air resistance, the aerodynamic shape is given to the basic structure of the aeroplane where aerodynamic design is not given to any bus due to much less air resistance problems.
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