乒乓球进门与提高-球的运转弧线,速度,力量,改变和落点(国外英文资料).docVIP

乒乓球入门与提高-球的运行弧线,速度,力量,旋转和落点(国外英文资料) The balls running arc, speed, strength, rotation and fall To play ping-pong, in theory, there must be two requirements: One is to return the ball to the other side of the counter, in accordance with the rules, to respond effectively. It requires a suitable arc to play. The second is the quality of the past balls. This requires a change in speed, strength, rotation and falling points. There is no such thing as a former. But only the former without the latter, while playing for stability, is hard to win. Here are the running curves of table tennis, the speed, the strength, the rotation and the lower points are as follows: The running arc of the ball The sport of table tennis is basically run by a certain arc. The ball is running over the sphere, its arc is limited by the length of the platform, the height of the net and the width of the platform. Reasonable arc point length, the main if guaranteed to hit the ball is not too short in the arc too short but the net, not because the arc length is too long and out of the end line. The arc of the knot is high, basically is to assure the ball that the ball goes out is not because arc too low and the net, do not because arc too high and be to be put to the square to kill. The reasonable arc direction is the guarantee that the ball wont go out of the line. Of course, the reasonable arc should also adapt to the needs of tactics. The main factors influencing the curve of table tennis are: The high and low arc of the arc depends on the Angle and speed of the shot. Generally speaking, the bigger the Angle, the faster the ball, the higher the ball will run. The Angle of the shot depends mainly on the Angle of the bat, the position of the ball, the direction and the magnitude of the force, and the rotation performance and strength of the ball. Speed is determined by the power of the ball. (2) of the length of the arc load-point in Angle for a certain case, generally speaking, the greater the powe