How can a person become heavier when he exerts himself?

It's not that he's getting heavier, if you ask him to push on the scale, you'll find that the scale's hands don't shift, it's just that he changes the shape of his body by force, causing the center of gravity to shift, and you feel more strained when you hold him, just like the farther away from the axle when you push the door, the less force is needed to push it, which involves the concept of physical moment.

The force you use, and of course you control the amount of force.

You feel heavy because you're stressed, let **squeeze, remember: it's your feeling that changes suddenly, and this feeling is somehow a bit like heavy, but that's not the same thing.

Or the hug he gives you, some of the force is downward, which naturally increases your pressure on the ground, and the force on the ball of your foot is greater. It will feel heavy.

There's an acceleration after the force, and then you're going to use a bigger force to create an acceleration in the opposite direction, so it's going to feel heavier.

He moves to produce a speed, and you have to overcome this speed, in addition to overcoming the weight, you also need to exert extra force to change his athletic outfit, and it feels heavy.

I think it's getting heavier. It was when you held him that he borrowed strength from you, and the downward force increased. And in terms of weighing, there is no place to borrow strength, and the natural weight will not change.

This is due to a shift in the center of gravity.

That's not what the landlord meant.

He's saying, "For example, if a person is standing on the ground and letting you pick it up, and his feet are firmly on the ground and he doesn't want you to pick it up, you feel differently in these two situations."

Why?

Physics has studied pressure.

Haven't you learned about action and reaction?

The mandala of the angels is the right solution.

When a person is alive, you go to help him, and he will more or less follow you and support himself (such as a drunk, as long as you hold him, he can walk by himself, and the main force is himself.) If he is already drunk like mud, it will be the same as a dead person, try to lift it again, it is strange if you are not tired to death), the weight of the person who dies is completely borne by the person who carries him, so it is very heavy (no matter how thin a person is, there are dozens of pounds, a bag of rice is only 50 pounds), in fact, the weight of the person has not changed, even if there is really the so-called soul weight "21" grams, compared with a hundred pounds of people, it can be ignored (that "21 grams" I personally think is purely the weight of the last breath exhaled before death) The other is that people and things that weigh the same weight, we all feel that things are heavier than people, and 120 catties of rice is not "a little heavier" than 120 catties of people. If you can carry a 120-pound person, you may not be able to carry a 120-pound bag of rice; If a strong man is holding such a heavy amount of rice, then it will be absolutely easy for him to carry someone of the same weight.

This is because when a person is held or carried, he will cooperate with the person who carries him or hugs him, so that the posture and force of the two people are more comfortable and easy to exert force. It's not good to carry things, there is no such a good thing, make yourself so comfortable, many times rely on the arms to exert force, and you can't use strength elsewhere in the body, so you will feel very heavy and easy to get tired. That's why.

This is physics, when measuring weight, the weight of the weight of the weight of the earth is attracted by the weight of the human body (referred to as human gravity), if you add additional downward pressure, then the weight of the weight is the gravity of the person + additional pressure.

So the scale is bigger.

If you conform to the attraction of the earth, it has the effect of gravity, and of course it will be heavy when you exert it externally.

In fact, there will be no change at all before and after death, there will be no change in the number at all, and it will even become lighter, because people will no longer take in any nutrients after death, but the bacteria and some microorganisms in the body will also decompose and consume the body's energy, so the weight of the body will become clear. Originally, it was a machine that didn't dare to become heavier, because people have no consciousness after death, and they can't adjust their center of gravity, just like losing him a person who faints, his whole body is paralyzed on the ground, and it is difficult for people to carry it easily.

But when he sobers up, it will be very easy to carry her at this time. In fact, after death, due to the influence of gravity, the blood inside the body will sink, the muscles will become relaxed, and there is no force point in the whole body. Therefore, for the person who carries him, because there is no good focus, it will be very difficult to carry him at this time, and it will feel that the corpse has become heavier.

In fact, the weight of the body has not changed at all. Do you still have any doubts about this?

It's heavy when you don't move, and people who are sleeping and people who are drunk feel heavier than usual, so it's the center of gravity. The person who is active can adjust the center of gravity on his own and let himself.

The center of gravity is in the most load-bearing part of the loader, so it feels light.

In principle, after a person dies, many things in the body are degraded, and the bacteria in the body consume a lot of things, so the weight of the dead person should be lighter.

Why does a person's body sink 7 days after death? You can't believe it!

Can a person eat after death?

Do people become sponges when they die?

So the mass does not increase after the person dies.

I'm sorry, but I don't know much about that.

Hello dear, I have received your question here, please wait a moment, I will answer it for you

It has been scientifically proven that a person can quickly lose 21 grams of weight after death.

When a person dies, he loses 21 grams, which is the weight of his soul. This is what the Europeans say.

Some people will write everything on their faces, but some people will hide everything in their hearts, and their words and deeds tend to reveal many, many ......

Suppose, he sometimes laughs, and he is happy all day, or when he is happy at the beginning, he doesn't talk later, and he is stuffy, and it is very complicated.

Generally speaking, if you are very heavy-minded, you should not want to talk very much, your face is solemn, and you always like to think about things that hinder him.

With a sad face, looking forward and backward, and thinking heavily shows that he is not very good at releasing pressure.

This man is always distracted when he speaks and acts, that is, his mind is uncertain and slightly thoughtful.

Playing chess with him, you can see the way of thinking, the degree of decisiveness, the chess character, etc.

From the conversation dress, and some small actions can be analyzed.

Silent all day long, smiling and absent-minded.

You're talking about the apparent weight that we see ourselves on spring scales and the like.

Explanation: First of all, we need to know that spring scales and the like say that its working principle is the balance of two forces, that is, on flat ground: mg=f f is the magnitude of the force that can be seen.

In the elevator, at this time, the analysis of the force on the human body can quickly know that the person is supported by the upward force f and the downward gravity g, at this time the person has an upward acceleration a, according to Newton's second law ma=f-g deformation f=ma+g and according to Newton's third law the support force f is equal to the elastic force of the spring scale, so it seems that the value becomes larger.

Yes. Because according to the American "Daily Health"** report, when doctors do physical examinations for some elderly people, they find that there is fat in their bones, and the older they are, the higher the amount of fat in their bones.

When you are born, you have almost zero fat in your bones," says Dr. Jeffrey Jimbo of the Pennington Biomedical Research Center at Louisiana State University. But he added that after the age of 30, more than half of the bone marrow cells have been replaced by fat. And as we age, almost all bone marrow cells eventually turn into fat, so the number of bone marrow cells in the bones decreases and the amount of fat increases.

Absolutely not, it will become lighter when you get older, as you get older, people will slowly lose calcium, and the best proof is that the teeth will fall out, calcium is the main component of bones, do you say that bones will become heavier? Unless, you're full of bone spurs.

No, you will have osteoporosis when you get older.