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

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

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CA Maninder Singh is a Chartered Accountant for the past 9 years and a teacher from the past 16 years. He teaches Spoken English, Written English, Grammar and Vocabulary at Englishtan.