Explain why objects moving in fluids must have special shapes.  

Answer

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

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo