When towing someone with a pwc, An observer or wide-angle rearview mirror is needed.
What is Towing?
Towing can be regarded as the coupling of two or more objects together using a power source so as to pull them along.
Therefore, when towing is needed there should be a rearview mirror to monitor things to avoid damage to other object.
Learn more about Towing at;
https://brainly.com/question/26270116
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