What is the Winter Olympics knowledge related to mathematics?

Winter Olympics knowledge related to mathematics is as follows:

1. Competition scoring method: average.

In the snowboard U-shaped pool competition, after a snowboarder finished skiing, five judges scored 81 points, 89 points, 83 points, 88 points, and 84 points respectively. The highest score was removed from the calculation. and the lowest score. What is the athlete’s final score?

2. Why do you have to wipe the floor so hard in curling competitions?

The curling game is a game between two teams, each team has 4 people. The two teams take turns throwing the ball, not only to make their own curling stone reach the center of the camp, but also to keep the opponent's curling stone away from the center of the circle.

In order to reduce the friction between the curling stone and the ice surface, water droplets will be evenly sprayed on the ice surface before the game. However, the surface of the curling track is not as smooth as a mirror. The slightest bulge will cause damage. Change the trajectory and speed of curling. Therefore, athletes will change the sliding distance and angle by "wiping the ground" to get better results.

3. Ski jumping trajectory: parabola

For example, Frog Princess Gu Ailing’s third jump to win the championship, the skater’s assist speed can reach 24 meters/second. When the athlete is sliding, We will see a beautiful parabola, and its movement trajectory can be abstracted into a quadratic function image. Ask the athlete what is the maximum height above the ground?

4. Various numbers in the Winter Olympics venues: understanding of numbers

The National Speed ??Skating Stadium, also known as the "Ice Ribbon", is the only new ice competition venue for this event. The National Speed ??Skating Stadium covers an area of ??17 hectares, has a 400-meter-long track, and the ice surface reaches the highest standard in the world. The venue can accommodate approximately 12,000 spectators.

The National Ski Jumping Center is also known as "Snow Ruyi". The HS140 large platform is 110 meters long and has a drop of 135 meters; the HS106 standard platform is 106 meters long and has a drop of 115 meters.

The National Snowmobile and Sled Center is the competition venue for the snowmobile, sled and steel frame snowmobile events of the Beijing Winter Olympics. The venue has 16 curves with different angles and gradients. The center covers an area of ??18.69 hectares, with a construction area of ??52,500 square meters and a structure area of ??21,500 square meters.

5. Winter Olympics competition events: classification and collection

This Beijing Winter Olympics has a total of 7 major events, 15 sub-events, and 109 minor events.

Take short track speed skating as an example. It is divided into men’s events, women’s events and mixed events. There are also 500m, 1000m and 1500m single events, as well as 2000m, 3000m and 5000m relays. race.