ECAT Engineering Exams Quizzes MCQs Quizzes ECAT Engineering Entry Test 2017 Physics Fluid Dynamics 2

Question:
The expression for the terminal velocity Vt is given by

Option A):
Vt= mg/ 6 π²ηr
Option B):
Vt = mg/36πη
Option C):
Vt = mg/6 πηa
Option D):
Vt = mg/6 πηr

Correct Answer is Option D):
Vt = mg/6 πηr