171. The figure below shows the transverse wave on a rope at moment $t = 0$, propagating with speed $10\ \dfrac{\text{m}}{\text{s}}$. What is the distance that particle $M$ travels during the time interval $t_1 = 0.015\ \text{s}$ to $t_2 = 0.058\ \text{s}$, in centimeters? [Figure: Transverse wave on a rope; y-axis in cm with amplitude $a$ and $-r$; x-axis in cm; point M is marked on the wave; wavelength marking of $120$ cm is shown.] (1) $3$ (2) $6$ (3) $9$ (4) $12$
\textbf{171.} The figure below shows the transverse wave on a rope at moment $t = 0$, propagating with speed $10\ \dfrac{\text{m}}{\text{s}}$. What is the distance that particle $M$ travels during the time interval $t_1 = 0.015\ \text{s}$ to $t_2 = 0.058\ \text{s}$, in centimeters?
\textit{[Figure: Transverse wave on a rope; y-axis in cm with amplitude $a$ and $-r$; x-axis in cm; point M is marked on the wave; wavelength marking of $120$ cm is shown.]}
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(1) $3$ \\
(2) $6$ \\
(3) $9$ \\
(4) $12$
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