. When a body falls in air, the resistance of air depends to a great extent on the shape of the body


Three different shapes are given. Identify the combination of air resistances which truly represents the physical situation?

(The cross-sectional areas are the same).

when a body falls in air

 

Best Answer

Ans: c

Solution: Figure 3 is streamlined, so air resistance of it will be minimum. For figure 1 surface area is maximum. So air resistance for it is maximum.

Hence, correct sequence is 3 < 2 , 1.

 

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