Q. The damping force of an oscillating particle is observed to be proportional to velocity. The constant of proportionality can be measured in
A) Kg $s^{- 1}$
B) Kg s
C) Kg $ms^{- 1}$
D) Kg $m^{- 1}s^{- 1}$
Explanation
Force, $F = kv,\lbrack k\rbrack = \frac{\lbrack F\rbrack}{\lbrack v\rbrack} = \frac{\lbrack MlT^{- 2}\rbrack}{\lbrack LT^{- 1}\rbrack} = \left\lbrack MT^{- 1} \right\rbrack.$ So, unit is $kgs^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.