A feather falling from a height of 10,000 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 would be killed by something that suddenly fell on the road? Therefore, falling objects from high altitude are really dangerous, especially the higher the floor, the greater the power of falling objects and the deeper the damage. So if a feather falls from ten thousand meters, will it kill you?

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

There used to be a group of very learned doctors. Once they were discussing the topic of gravity and asked a question: What is the momentum of a drop of water falling from a height of 10,000 meters? Will someone die? This question aroused everyone's passion in an instant. Many doctors show their magical powers and list various formulas for calculation, but in the end everyone's answers are different. Suddenly someone suddenly asked:? Have you never been caught in the rain? ? All the people in the group were instantly quiet. 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 10,000 meters. According to the gravity formula G=mg, we know that the smaller the mass, 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, leaving it with little impact on the actual landing. 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 the speed is fast, it will inevitably rub against the surrounding air and generate a lot of heat (imagine the rocket rubbing against the atmosphere). The feather was lit before it landed. How could it kill people?