比赛中的乒乓球的运动是既包含平动 ,又包含转动的复合运动。对于平动的运动规律 ,人们往往容易掌握。但对于转动 ,初学者常常感到难于驾驭。究其原因 ,是因为没有掌握其中的力学规律。下面从物理学的角度对其基本规律进行讨论。一、下旋球运动员如图 1(a)击球 ,乒乓球会产生如 Table tennis in the game is a combination of both translation and rotation. For the translation of the laws of movement, people tend to be easy to grasp. However, for beginners often feel difficult to control. The reason is because there is no grasp of the laws of mechanics. The following from the perspective of physics to discuss its basic rules. First, the next spinball player Figure 1 (a) hit the ball, table tennis will produce such as