Explain why objects moving in fluids must have special shapes.  


When an object is moving in a fluid, the fluids exert a force opposite to the direction of motion.

This frictional force is exerted known as drag

To decrease this drag, the objects are given a special shape

Hence, it becomes easier for the objects to move in the fluid

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  1. Class 8
  2. Chapter 12 Class 8 - Friction

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.