A feather falling from a height of 1, meters will kill people?

Recently, the news that pedestrians were killed by falling objects frequently appeared on TV news, which inevitably made people sigh that things are impermanent. Who would have thought that they could be killed by something that suddenly fell while walking on the road? Therefore, falling objects from high altitude is really dangerous, especially the higher the floor, the greater the power of the falling objects and the deeper the damage. So if a feather falls from ten thousand meters, will it kill people?

I believe many people have doubts about this question, but I think you may get the answer if you have heard the following joke.

There was once a group of knowledgeable doctors. When they were discussing the topic of gravity, they once asked a question: What is the momentum of a drop of water falling from the sky at a height of 1, meters? Will it kill people? This question aroused everyone's passion in an instant. Many doctors showed their abilities and listed various formulas for calculation, but in the end everyone's answers were different. Suddenly someone suddenly asked:? Haven't you ever been caught in the rain? ? All the people in the group instantly quieted down. And the speaker was silently kicked out of the group chat.

Although this is just a joke, I think you may get the answer from this joke.

feathers fall from a height of 1, meters, and according to the gravity formula G=mg, we know that the smaller the mass of an object, the smaller the gravity, and the smaller the dynamic potential energy when feathers fall from a height. Moreover, because the feather is very light, the air will have a resistance effect on it, slowing down the falling speed of the feather, and there is little impact force left for it to actually land. So it can't kill anyone at all.

Think about it from another angle. Even if you don't know the formula of gravity, in your imagination, a feather falls from the sky. If its speed is fast, it is bound to rub with the surrounding air, generating a lot of heat (imagine how a rocket rubs with the atmosphere when it takes off). If the feather is lit before landing, how can it kill people?