A spherical body falling through a viscous liquid of infinite extent ultimately attains a constant value. When
A
Upthrust + weight 
viscous drag
viscous drag
B
Weight + viscous drag = upthrust
C
Viscous drag + upthrust 
weight
weight
D
Viscous drag + upthrust 
weight
weight
Text Solution
Verified by ExpertsThe correct answer is:
C
Viscous drag and upthrust acts upward and weight acts downward for constant velocity (terminal velocity). Viscous drag to liquid and upthrust should balance weight of the ball.
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