Safety net
A safety net is a type of net designed to protect people from injury after falling from heights by limiting the distance they fall, and dissipating the impact energy. The term also refers to devices for arresting falling or flying objects for the safety of people beyond or below the net.
Safety nets are used in construction, building maintenance, entertainment, and other industries.
Action of a safety net
A safety net gives falling objects much more time to come to rest than hitting the hard ground directly. In physical terms, this means more time for deceleration and kinetic energy transfer, resulting in a softer landing and a much lower risk of damage.The specific type of net to be used depends upon many factors, such as the falling object's speed and mass. To withstand more force, a greater total width of the net is required. The minimum distance between the spot on the net where the object impacted and the nearest edge of the net is also important and must be maintained above a certain limit. The materials used to make the net, and the tension of the net's ropes, are other important factors. Additionally, the net must be placed at an appropriate height from the hard ground, so that a falling object could not make contact with the ground. The hole size of the net should not be so big that falling objects could pass through its holes.