Skills of ring games
The success of the ferrule depends on three factors: speed, angle and target width. The trajectory of the iron ring thrown by a normal person is this: in this case, there is a speed at the moment when the iron ring falls to the ground. By decomposing the velocity in the horizontal and vertical directions, the horizontal velocity x and the vertical velocity y can be obtained. Because y is related to the height of the throwing circle, the higher the throwing, the faster.
The difficulty of ferrule is to make an object "reach into the circle" in a short time window. In other words, the object must not hit the front edge of the circle at the last moment, and the object must enter at the next moment, and the height of the object must be higher than the back edge before the back edge can fly, so as to achieve the purpose of trapping.