A) \[\text{kg}\,\text{m}{{\text{s}}^{\text{-1}}}\]
B) \[\text{kg}\,\text{m}{{\text{s}}^{\text{-2}}}\]
C) \[\text{kg}\,{{\text{s}}^{\text{-1}}}\]
D) \[\text{kg}\,\text{s}\]
Correct Answer: C
Solution :
Given, Damping force \[\propto \] velocity \[F\propto v\] \[F=kv\] \[k=\frac{F}{v}\] Unit of \[\text{k}\,\text{=}\frac{\text{unit}\,\text{of}\,\text{F}}{\text{unit}\,\text{of}\,\text{v}}\] \[\,\text{=}\frac{kg-m{{s}^{-2}}}{m{{s}^{-1}}}=kg{{s}^{-1}}\]
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