The ribbon after three complete vibrations will be in the first loop, in the same place as when it started. It is fundamental to understand waves.
Waves and vibrations
A wave can be defined as a type of disturbance that extends from a given site to another through space.
Moreover, light and sound can be considered vibrations capable of moving through space.
In this case, the motion of a ribbon is in a direction transversal to the direction of propagation of the wave.
Learn more about waves here:
https://brainly.com/question/3004869
