LZ的想法。。:如果忽略液体的阻力，那么显然物体的确会弹出水面，但是该问题中阻力不能忽略，也就是说物体能否弹出液面和液体本身的性质有关，那么能产生这一奇特现象的液体又是否存在呢？

我觉得这是惯性问题诶。。。

看物体的密度
如果液体体积较大，可以忽略液体表面的高度变化
那么我们就可以算出物体位移与排水量的函数
然后推出位移与浮力的关系
通过微积分算出浮力做的工
如果大于过程中的重力势能的变化量就可弹出

拿水银实验一下
　　 　----萌萌哒馒糕说

。。

也许可以用加速度算呢……合力向上的话有向上加速度，加速度够大再因为惯性……就好了……吧。

My purpose is becoming an 18-level-great-god. If you get 4 points of experience per day by registration,and level 18 means 300000/4=75000 days, if you start at the time when you are 1 year old, and 100 years=36500 days, then you shuold live for 200 years and keep your registration everyday (God knows if there is still a thing called "registration" after 200 years), and if you earn 4 more points of experience, then the time you need will decrease for a half, but let's think about reality, you are not able to live 100 more years, so let's consider about the situation of 50 years, then you have to earn 16 points per day. Maybe you are a hardworking guy,and earn 32 points per day, then you just need 25 years!!! If you are a live-for-experience-earning guy, and earn 64 points per day, you just need 12.5 years!!! If you are an impatient guy, and earn 128 points per day,you just need 6.25 years!!! If you really cannot wait, and earn 256 points

小时候没少这么玩 别说木头 就是泡沫塑料都弹不出水面 有些问题讨论不如实践

惯性问题，关键是木块体积能否足够大使浮力提供的动能克服所有阻力
研究表明，当你看完这个小尾巴后，你将失去2秒钟的生命。
　　　--来自ctOS网络

惯性问题，关键是木块体积能否足够大使浮力提供的动能克服所有阻力
研究表明，当你看完这个小尾巴后，你将失去2秒钟的生命。
　　　--来自ctOS网络

水底距离水面还有水得阻力都有关，还有是不是还得考虑表面张力？