A) 80 dynes
B) 200 dynes
C) 800 dynes
D) 2000 dynes
Correct Answer: D
Solution :
\[F=-\eta A\frac{dv}{dx}=20\times 10\times \frac{1}{0.1}=2000\,\]dynes. Hence, the correction option is [d].You need to login to perform this action.
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