Question

A circular loop of the string rotates about its axis on a frictionless horizontal plane at a uniform rate so that the tangential speed of any particle of the string is $v$. If a small transverse disturbance is produced at a point of the loop , the speed (relative to the string) at which the disturbance will travel is

• A. $v$
• B. $\frac{v}{2}$
• C. $2v$
• D. $\frac{v}{4}$

Answer 1

Answer: (A)

$v$

The speed (relative to the string) at which the disturbance will travel is the same as the tangential speed of any particle of the string.