Q. The damping force on an oscillator is directly proportional to the velocity. The units of the constant of proportionality are
A) $kgms^{- 1}$
B) $kgms^{- 2}$
C) $kgs^{- 1}$
D) $kgs$
Explanation
$F \propto v \Rightarrow F = kv$ $k = \frac{F}{v} \Rightarrow \lbrack k\rbrack = \frac{\lbrack kgms^{- 2}\rbrack}{\lbrack ms^{- 1}\rbrack} = kg\ s^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.