Would you please help me with these questions. I would really appreciate it. This is a business Law.

As a matter of common knowledge, jet skiing is an active sport involving physical skill and challenges that pose a significant risk of injury, particularly when it is done-as it often is -together with other jet skiers in order to add to the exhilaration of the sport by racing, jumping the wakes of the other jet skis or nearby boats, or in other respects making the sporting activity more challenging and entertaining. In response to the plaintiff's complaint that the trial court erroneously assumed that the litigants were contestants in some sort of consensual competition event and/or spectator sport, [we conclude] that the doctrine applies equally to competitive and noncompetitive but active sports. Plaintiffs urge [that] Rachel was merely a passenger on the Polaris and was not actively involved in the sport. The record supports the conclusion that riding as a passenger on a personal watercraft [is participating in a sport), because it is done for enjoyment or thrill, requires physical exertion as well as elements of skill, and involves a challenge containing a potential risk of injury. The vessel is open to the elements, with no hull or cabin. It is designed for high performance, speed, and quick turning maneuvers. The thrill of riding the vessel is shared by both the operator and the passenger. Obstacles in the environment such as spraying water, wakes to be crossed, and other watercraft are part of the thrill of the sport, both for the operator and the passenger. The summary judgment is affirmed. Question: What is assumption of the risk? Question: Is the court saying that death is an obvious danger when jet skiing? Question: But Rachel was a passenger on a jet ski out for fun on a warm afternoon, how is that engaging in a sport