论文部分内容阅读
铅球作为一项体育运动,其中包含了丰富的物理知识,例如手握铅球进行滑步直至抛出,铅球与手之间有静摩擦力的作用;铅球被抛出后,由于惯性而继续飞行;铅球飞行过程中,不考虑空气阻力时机械能守恒等.那么,要想提高铅球运动成绩需要注意什么问题呢?一、推出铅球前的滑步运动在推铅球的运动中除了掌握基本操作技巧外,总是要在铅球抛出前进行滑步运动的.如果站在投掷处
As a sport, shot put contains a wealth of physical knowledge, such as holding the shot ball and making a sliding motion until it is thrown, the static friction between the shot putter and the hand; after the shot puts out, it continues to fly due to inertia; During flight, mechanical energy conservation is not considered when air resistance is concerned. So, what problems need to be paid attention to in order to improve the results of shot put? First, the slide exercise before shot-putting is not only the basic operation skill but also the basic operation skill. It is necessary to perform a sliding motion before the shot is thrown. If standing at the throw