Final answer:
Having a personal trainer speak on exercise and fitness is an example of ethos because the trainer's expertise and credibility in health matters establish trust and authority, making their persuasive appeal stronger.
Step-by-step explanation:
Having a personal trainer give a speech about exercise and physical fitness is an example of the use of ethos because it leverages the trainer's recognized expertise and credibility in the realm of health and exercise. Ethos relates to the ethical appeal or the persuasive technique that convinces the audience of the speaker's credibility or character. A personal trainer has the necessary qualifications and experience to speak authoritatively on the subject, which helps in persuading the audience that the information provided is reliable and worth following.
Ethos is a crucial element of rhetorical persuasion. It involves establishing trust with the audience and showing that the speaker has the relevant expertise and authority on the subject matter. By sharing his or her direct experience and possibly, credentials, a personal trainer can create a stronger ethical appeal. Moreover, citing reliable sources or related certifications reinforces their authority and credibility further.
The final answer in two lines explanation in 300 words for why a personal trainer speaking about physical fitness is an example of ethos is: A personal trainer inherently possesses credibility and expertise in the subject of fitness, which instills trust in the audience, serving as a foundational element of ethos—a key aspect of the persuasive appeal.