"Let's take 10 meters. Pen, fun, pavilion www. biquge。 info" Mu Zisheng said, Huang Bo asked:

"What's wrong?"

Mu Zisheng explained:

"Just now our Captain Xiao also said, when I came to the crooked neck tree, I first smelled the soil, and then observed the location of the roots, plus just now you said that the body was ten meters away from this tree, and now I am even more sure that the deceased did not commit suicide, please listen to me slowly."

Huang Bo nodded, Xiao An finished his cigarette, and slowly walked towards the old wall, as if he wanted to see through the old wall and stare at the old wall, and he felt that the old wall seemed to hide some secrets. Shi Jia looked at Xiao An over, and then turned to Mu Zisheng's side again, she also wanted to know how Mu Zisheng reasoned.

"The dead are one hundred and twenty pounds, and the force that can be generated is at least one thousand two hundred newtons, and the force that this tree can bear is three thousand newtons."

"I mentioned explosive power and instantaneous force before, explosive force is unexpected force, instantaneous force is like a heavy object landing, the force at the moment of landing is very large, there is a strong destructive force, I call this instantaneous force. In fact, it is the work generated by the object running for a period of time, and this work suddenly stops, it is necessary to give a reverse work, we all know in high school that the work is equal to the force multiplied by the distance, and the longer the distance of the object falls, the greater the work generated, and the reverse work is also the same size, but the distance is very short, almost not moving, so the greater the force required, this force I call the instantaneous force, so the instantaneous force can be said to be much larger than the gravity of the object, and even the longer the distance will be dozens of times or hundreds of times larger. ”

Shi Jia closed her eyes and said with a messy mind:

"Stop, what a mess of instantaneous force, power, distance, I'm confused."

In fact, Huang Bo too, although this knowledge seems to be really available in high school, but it has been so long who still remembers so much, I saw Huang Bo's immature face, especially the wrinkled eye lines at the corners of his eyes, to put it bluntly, I don't understand. Xiao An explained:

"To put it simply, the instantaneous force is to be greater than the gravitational force of the object, and the instantaneous force is observed according to the distance the object moves."

Mu Zisheng pushed his glasses, then looked at the two of them and said:

"That's right, that's what Brother An said."

The two nodded silently, but they didn't know that they really seemed to have understood, Mu Zisheng continued:

"The deceased jumped from here with a rope tied, specifically four forces will be generated, the first is its own gravity, the second is the explosive force relative to the tree, the third is also the instantaneous force relative to the tree, and the fourth is the elastic force of the rope."

"We already know that the gravity of the deceased is 1,200 Newtons, and the distance of the fall is 10 meters, and from what I have just observed, this number has moved only one centimeter."

"The displacement distance of the tree is only one centimeter, that is to say, the instantaneous force generated is almost a thousand times that of gravity, that is, like this tree falling 120,000 catties of weight, 120,000 catties is 400 times for 300 catties, not to mention that the tree did not fall, even if it is cut off in the air. Besides, the rope has a small stress area and can be cut horizontally, but do you see this tree, there is not much change. That's one of the reasons why the deceased didn't commit suicide"

"The second reason is that if we assume that the tree can indeed withstand such a large instantaneous force, then the roots of the tree will definitely have a strong squeeze on the surrounding soil, and as I said just now, according to the shape and freshness of the soil, the tree does not have a huge squeeze on the surroundings, even if the corpse is brought up, the surrounding soil has not changed much, the main reason is that the corpse is slowly pulled up, not instantaneously pulled up, if it is pulled up instantly, the tree will also have a strong squeeze on the surrounding soil, However, the extrusion does not jump down to say that the degree of extrusion is large, and even if there is this, you can know which method of soil extrusion is generated by calculus. ”

After listening to Mu Zisheng's description, Huang Bo squatted down, grabbed the soil around the roots, compared it carefully, and then nodded solemnly, it is true, they had lost so much careful insight in handling the case at the beginning, but they didn't think about it so much at the time.

Mu Zisheng looked at Shi Jia, Shi Jia was also in deep thought, Mu Zisheng's eyes flashed with a blue light, and then he said:

"Sister Jia, do you have any questions? Why don't you come and have a look? ”

Shi Jia came back to his senses, and then immediately said:

"No, you haven't said anything about the elasticity of the rope?"

Mu Zisheng pushed his glasses again and said:

"That's the third reason I'm going to say, the two reasonings were combined together, plus the elasticity of the rope."

Shi Jia pursed her lips, and then said:

"You better don't sell it, hurry up!"

Huang Bo slowly retreated, which was also the third reason for waiting for Mu Zisheng to continue him.

"The third reason is that we all know that the elasticity of the rope is not good, so the elastic force that can withstand it is not very large, and then it is equivalent to 1.2 million Newtons of force to pull the rope, and the rope can still continue? Due to the instantaneous force and explosive force, the rope must be broken unintentionally, but the rope did not break. Even if the rope is very strong, it will have an elastic force on the tree, and the tree and the corpse will shake up and down, so that the tree will squeeze the surrounding soil, and at the same time, there will be obvious friction marks on the place where the rope is tied to the tree, but there is no on the tree, I don't know what happened to the corpse. ”

Xiao An added:

"We looked at the hanging corpses this morning, and Molly also said that there were no injuries caused by unnecessary abrasions on the neck, which Captain Huang was also present at the time, and he also knew it."

Huang Bo nodded and said:

"That's true, that's what your coroner said, and I've observed that there are no scars on my neck from the stiff friction of the rope. After such careful calculations by you. The deceased really didn't commit suicide. ”

Xiao An turned around and said:

"The fourth reason is that the deceased's nails are clean and free of dirt, you must know that even self-killed people have the survival instinct to grasp the things around them, which Shi Jia knows quite well."

Shi Jia said slowly:

"People will have different psychological effects in the face of death, but there is still an instinct for this kind of survival, they will struggle, they will be uncomfortable to scratch everywhere, just now Team Xiao also said, there is nothing in the fingernails of the deceased, which shows that the deceased did not commit suicide, and even the cause of death is still strange."

The other three nodded together, and Mu Zisheng said again:

"Combining our conclusions just now, we came to the conclusion that the deceased was artificially put down, and it was carefully put down, and the person who put it down was definitely not a big fat man of more than two hundred pounds."

"Why? Well, I seem to understand, because the weight of the two of them together is more than 300 catties, so the tree is easy to be crushed down. Huang Bo first questioned, and then explained.

The three members of the investigation team nodded with satisfaction, at this time, they don't know why there is a thick white fog between the top of the mountain, which is very weird, although the people halfway up the mountain have been looking at the cliff, but they can't see through the woods, and they are a little curious and a little jealous.