NCERT Solutions for Class 8 Science Chapter 12
Important NCERT Questions
8th Chapter 12 Friction
NCERT Books for Session 2020-2021
CBSE Board and State Board
Questions No: 10
Explain why objects moving in fluids must have special shapes.
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NCERT Solutions for Class 8 Science Chapter 12
Important NCERT Questions
8th Chapter 12 Friction
NCERT Books for Session 2020-2021
CBSE Board and State Board
Questions No: 10
The frictional force exerted by fluids is also called drag or fluid friction. To overcome or minimize air fluid friction, the bodies of objects minimise its surface i.e. sometime spherical shapes or other streamlined shape with smooth surface. Aeroplanes, jets, rain drops have streamlined curve surface to reduce air drag.
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