很多人打臺球只專心于技術(shù)練習(xí)，很少人會了解臺球被擊打后移動與物理知識聯(lián)系到一塊，其實(shí)所有臺球被擊打后的移動都符合動量守恒定律。其實(shí)我們手中的臺球桿就好比一根鏈接臺球技術(shù)與知識之間的杠桿，要想提高臺球技術(shù)，我們需要平衡這根杠桿，所以物理知識還是要普及一下，有助于幫助大家在臺球方面有更好的造詣。

A lot of people play billiards only with technical exercises. Few people know that the movement of billiards is linked to the physical knowledge after being hit. In fact, the movement of all the billiards that are hit conforms to the law of conservation of momentum. In fact, the billiard lever in our hands is like a link between the technology and knowledge of the billiards. To improve the billiard technology, we need to balance the lever, so the knowledge of physics is to be popularized and help you to have better attainments in billiards.

首先拿直線球來說，當(dāng)目標(biāo)求被擊打后，這時母球?qū)⒆约旱膭恿咳總鬟f給了目標(biāo)球，如果母球沒有旋轉(zhuǎn)，那么這就是定桿，停在原地。有些朋友發(fā)現(xiàn)，當(dāng)直接打母球中間時，為什么目標(biāo)球還繼續(xù)走， 原因是產(chǎn)生了臺尼摩擦效應(yīng)，讓母球產(chǎn)生了前旋轉(zhuǎn)。所以通過臺尼摩擦效應(yīng)我們就能得到經(jīng)驗(yàn)，有點(diǎn)距離的球，我們要選擇定桿，需要對準(zhǔn)母球中下一點(diǎn)來擊打，用來抵消摩擦。
First, take the linear ball, when the target is hit, then the ball passes all of its momentum to the target ball. If the ball does not rotate, it is a fixed pole and stops in place. Some friends found that when the ball was in the middle of the ball, the target ball continued to go on, because of the tribological effect of the table, which gave the ball a forward rotation. So we can get experience through the tribological effect of the table, the ball in a little distance, we have to choose the rod, and we need to aim at the next point in the ball to counteract the friction.

如果出桿旋轉(zhuǎn)少，不管母球向前還是后，位移都相對于很少，所以要讓母球走得快，就得加強(qiáng)旋轉(zhuǎn)，無論是高桿，低桿，都是這樣的道理。stun就是讓母球的旋轉(zhuǎn)少，中高桿stun，中低桿stun，中桿stun，都是屬于stun。
If the rotation of the rod is less, the displacements are relatively small regardless of the ball forward or after the ball, so to make the ball go faster, it is necessary to strengthen the rotation, whether it is a high pole or a low pole. Stun is to allow the rotation of the ball less, the middle high bar stun, the middle low pole stun, the middle pole stun, all belong to stun.

對于有角度的擊打目標(biāo)球，其實(shí)也符合動量守恒定律，母球的動量分成了2個方向的矢量， 這2個方向的矢量和等于母球的原始動量。筆者打個比方，打薄球的時候，目標(biāo)球所得到的動量非常少，母球本身動量基本還在，所以母球速度幾乎沒有減少。
The angle of the target ball, in fact, also conforms to the law of conservation of momentum, the momentum of the ball into the 2 direction of the vector, the 2 direction of the vector and equal to the original momentum of the ball. For example, when the ball is thin, the momentum of the target ball is very little, and the momentum of the ball is basically the same, so the speed of the ball is almost not reduced.

母球走弧線時，是兩個力的合成。一個是分離交的動量，另外一個是母球的旋轉(zhuǎn)產(chǎn)生的力。最開始，分離交的動量很大，旋轉(zhuǎn)的力小，所以先偏移，然后旋轉(zhuǎn)的力效果出來了，就會改變方向。
When the ball is in the arc, it is the synthesis of two forces. One is the separation of momentum, the other is the force generated by the rotation of the ball. At first, the momentum of separation and intersection is very large, and the force of rotation is small. Therefore, first offset, then the force of rotation will come out, and the direction will be changed.

話說回來，我們很多時候要打小低桿，純低桿， 其實(shí)目的就是要讓分離角的力小，旋轉(zhuǎn)的力大。這樣才是純低桿，希望大家自己好好體會。
In other words, we often need to play a small rod, a low bar, but the aim is to make the force of the separation angle smaller and the force of rotation larger. This is the pure low bar, I hope you can experience it well.