The sandstorm caused a lamppost 13m high to be blown down and a car to be smashed. How big is the wind energy of sandstorm?

In recent days, the northern part of China has been affected by strong sandstorms, and the visibility is low, making it difficult to travel. On the evening of March 14, Baotou also ushered in a yellow warning of sandstorms. Visibility is less than 100 m, and wind speed reaches 22.3 m/s. After a night of strong winds, a traffic accident occurred at 6 am on March 15 at He Zhong Bridge in Kundulun District, Baotou City, and a 65438+ car was blown down by strong winds.

The strong wind blew down the telephone pole. The accident happened on a bridge, which is the only way for workers of Baotou Steel Group to go to work. After the accident, there was a traffic jam during the rush hour. Witnesses said that he passed the scene of the accident on his way to work, and the whole street lamp fell obliquely in the middle of the road on the bridge deck and crashed into the front cover of a car. Then the traffic police came to evacuate the traffic. Because the driver braked in time, the street lamp was prevented from hitting the roof and only his leg was hurt. If you hit the roof, the consequences will be unimaginable. At the same time, the traffic police contacted the crane and rushed to the scene to dismantle the street lights and restore traffic with the workers.

Sandstorm is super energy. This super sandstorm also caused a lot of property losses. For example, the color steel house in Hohhot, Inner Mongolia was directly blown to the car. Fortunately, no casualties were caused. There have been sandstorms with high automobile intensity in China. For example, in 1995, more than 40 counties in Shandong were hit by storms, resulting in 35 deaths; 12 1 disappeared; and in 1998, a strong sandstorm occurred, knocking down trees and cutting off all power lines. In 2000, a sandstorm swept through Beijing, causing seven workers on the roof of a two-story building in Anxiangli Community to be blown down by strong winds. Some billboards were blown down by strong winds, causing pedestrian injuries and vehicle damage. 20 10 ayou banner in inner Mongolia lost more than 4,000 livestock and 50,000 mu of farmland due to sandstorm, hundreds of vegetable greenhouses were destroyed and more than 300 wells were buried. The destructive power of sandstorms is obvious, threatening people's lives and property.

Sandstorms are extremely destructive. Although sandstorm has many unfavorable factors for people, it is indeed an indispensable part of the ecosystem, with both advantages and disadvantages. The wind energy of sandstorm mainly comes from the exposed wind and dust on the surface, which only shows that sandstorm is destructive. Because sandstorms can also bring sand, which is more destructive than simple strong winds. For example, a car may roll over in a strong wind, but if it is in a sandstorm, it will not only roll over, but also be damaged by flying sand and stones carried in the sandstorm. The sand trapped in a sandstorm is the most destructive under the action of strong winds.