The total drag is a sum of the skin drag and the pressure drag. Which – McqOptions

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1.	The total drag is a sum of the skin drag and the pressure drag. Which among of the following options, states the correct formula for skin drag and pressure drag? (Here stands for dynamic viscosity of fluid, D stands for diameter of the sphere and U stands for velocity of flow of fluid.)
A.	2 DU, 2 DU
B.	1 DU, 2 DU
C.	2 DU, DU
D.	3 DU, DU
Answer» D. 3 DU, DU

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