The resistive force on a very-high-velocity object of area A passing through a gas of density ρ at a velocity v is Force 
Then –
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
[F] = [A] r [ ρ ] s [v] t
MLT –2 = L 2r M s L –3s L t T –t = L 2r+t–3s M s T –t
equating the powers of each dimension give
2r + t – 3s = 1, s = 1, t = 2
i.e., r = 1; s = 1; t = 2
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