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第248章 收尾速度理论(2 / 2)

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“换算下来之后,V2=2mg/ρ·Cd·A……”

听着苏七月的这通解释,周围的战友都是一副惊为天人的表情。

“当下落物体形状近似球形,密度约等于水的密度的前提下,这个公式可以简单归纳为V=90√d。其中,d为物体直径。”

“我们将雨滴的平均直径2mm代入,结果得出雨滴坠落的收尾速度,只有4m/s。”

“这就是为什么雨滴砸不死人的原因……”

听着苏七月的回答,钱有志的脸上神色精彩极了。

本来他只是想警醒一下拓永刚,让他对明天的跳伞训练有一点敬畏之心。

没想到,竟然引出了苏七月这么一大串理论。

勉强平复了一下心情,钱有志温言道:“因此按照你这个理论算下来,人的收尾速度就是70m/s左右?”

苏七月微微颔首道:“正常情况下,确实如此。当然了,每个人的体型,跳落时姿势,都是不同的。最后反映到收尾速度上,肯定也有一点细微差距。”

“不过,70m/s这个量级,肯定是没错的。”

苏七月最后总结道:“根据这个理论计算下来,我军跳伞训练的日常高度放在3000米上下,还是很合理的!”

听完了苏七月的这番讲述,钱有志苦笑着摇了摇头,忍不住对他比了个大拇指。

“我教跳伞这么多年,还是第一次搞明白其中的理论。回头将你刚刚说的内容整理一下,都够写份论文了……”

钱有志说话的时候,旁边的袁朗、齐桓二人也错愕之中醒悟过来。

深深看了苏七月一眼,袁朗就咳嗽一声道:“行了,今天的训练就到这儿。齐桓,带他们去跑10公里越野吧,完了也好早点儿吃饭!”

“是!”

齐桓应了一声,领着特训人员就往外走。

等训练基地的人散了之后,钱有志这才对袁朗喟叹着说道:“副参谋长,你的这批兵里面真是藏龙卧虎啊。”

“那个27,跳伞方面的能力绝不逊色于我;39号,光电硕士、海军陆战队的重点培养对象;至于那个43号,就更了不得了……”

听着钱有志的感慨,袁朗就露出了一个神秘微笑。

……

操场上,刚刚开始奔跑的拓永刚,第一时间就凑到了苏七月身边。

“七月,我说你这学识也忒渊博了点儿吧?刚刚你注意到没有,你的一番话,直接将那位钱主任吓傻了!”

听着拓永刚夸张的话语,苏七月就好笑地摇了摇头。

另一边,吴哲也接口说道:“是啊,七月,你这理论力学的基础也太扎实了吧?真是服了你!”

见苏七月不回应自己,拓永刚就将目标转向了吴哲。

“我说平常心,你不是也硕士文凭吗?怎么七月说的理论,你就答不上来呢?”

“靠,我是光电硕士,不是理论力学硕士!”

吴哲啐了一口,不满地说道。

拓永刚嘿嘿一笑,揶揄道:“瞧你这话说的,好像咱们七月就是理论力学硕士似的……”

想到苏七月研究生期间的研究方向,吴哲顿时为之语塞。

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