即使好輕的野,係高空趺落來,佢的衝力會好大,同埋佢的子彈,易插穿物件,所以係有機會令人中槍

而且根據斜向拋體運動公式~~物體ge未速與初速有關~~~~~再加上衝力問題~~~~更加唔係無可能~~~~

我諗如果粒子彈係成90度角向上射出,
佢會直線落番黎..
f=mg, 咁個力就會好小, 因為m 細..

但係如果粒子彈用小於90度角射出,
個初速就會有關..
不過我己經唔記得點計la

你幻想下粒冰薄.......

f= mg無錯,但係應該用1/2mv^2
佢受的力係應該係計佢尾o個個velocity，我忘了怎麼解釋，大約是計佢受幾多能量，而唔係力呱。

但一個簡單的反正係，一個coin由五米，同一米高拋在地下的你，是否感覺一樣？

我知你講乜~
你話個終端速度..
當外力=0, 即係下落o既力=空氣阻力o既時侯發生..
個計法會比較復習, 都唔記得點計la..
但係最後受o既力應該唔會大過mg..

以我放低多年的物理理解....

其實計佢受幾多力，而致傷，該是以Ｊ為單為，P.E = mgh 或 K.E
若果只用 f = mg 係無錯，在那極短時間佢係有咁多力，但若要計粒子單能作功係幾多，就要多少少資料先得。或者用impulse。

我都放低左好多年..
所以好多野都唔記得左架la..

I am sorry, but aren't you guys way off the topic? Haha... I mean no offense.

However, I would like to point out that a regular gun that police carries, even 流彈 should not create much damage, unless it was mistakenly fired "at" him.
When a bullet is fired from a gun, it will carry the momentum that the gun pushes it to go out. When the bullet reaches it max height, in terms of velocity and/or acceleration, it should be 0. When it comes down, what is pulling the bullet down is simply just the gravity.

Just logically thinking, i don't remember any physics either. Haha...

點解唔用D空包彈既....
呢D場面應該預備定架嘛

唔係計啦....
佢被 流彈 打中,,,
只係佢唔好運 而已...