While giving my first try of skiing at Zhang Jia Kou, I gradually pondered about one question amidst the excitement, fear, and happiness: normal people may be seriously injured if they fall from a height of more than ten meters, so why can skiers fall from a height so calmly and unscathed when doing Big Air?
In fact, this mainly involves the knowledge of speed decomposition in sports, shown on the picture:
The v锅 in the picture represents the real speed of the athlete in the air, and based on the energy transformation during the high altitude fall, it is not difficult to know that this speed is very large, and if you land vertically at that speed, the consequences… Hard to describe ……
The actual landing process, the landing point for a certain angle of the downhill section; and the athlete’s speed v锅 can also be broken down into the blue speed along the slope v1 and perpendicular to the slope red speed v2; in fact, as long as the adjustment of the angle of the landing v锅 and the angle of the slope close to the angle of the slope, which can make the perpendicular to the slope of the speed of the v2 is small, so that the landing of the impact received by the impact is not large. The angle of the slope and the angle of the athlete’s landing are calculated, and the speed of the athlete along the slope after landing can be slowly reduced until the athlete comes to a standstill by the resistance of the ground and air.
There are some things that seem simple that are really hard to do in practice. Both physically and mentally, skiers go through a lot of training, including strength, agility and balance training, equipment and wind tunnel flight simulation training, etc., and they also fall down and get up again and again, experiencing repeated challenges and failures during skiing training on the actual course.
