[We must thank the real estate tycoon of the same group. The girl is pregnant and is resting in bed, so she is not in vain to give the fat man a reward. She is so moved. I wish the girl good health, smooth delivery, and a happy pregnancy.]

...

Liu Chen shouted: "What is the speed?"

"I...I..." Zheng Yuanyuan seemed to be calculating in a conditioned reflex, but he couldn't figure it out at all.

The two soldiers hugged him. No matter how hard he struggled, it was useless. Everyone finally breathed a sigh of relief. They held Zheng Yuanyuan down on both sides. Principal Sun Shuren also breathed a sigh of relief and said, "Thank you for your hard work, and this classmate has also worked hard. What's your name? Which class is from? Thanks to your urgent wisdom."

Witch Gu said, "Principal Sun, this is Liu Chen from our class."

"Okay, okay, okay." Sun Shuren said three good things in a row, obviously very affirming Liu Chen, but he didn't have a deep impression of this classmate, and it seemed that he didn't have a very good grade.

"Everyone hurry up," said to the worker next to him: "Lock this entrance and don't let someone come up again."

After everyone came down, Zheng Yuanyuan's mother and sister also came. After seeing him, they rushed over and hugged their heads and cried, "Son, why are you so stupid? If you can't get into college, then you won't take the exam. How can you not think about it? If you are gone, how can you live..."

"Mom, I'm useless, I can't learn well..." Zheng Yuanyuan cried bitterly.

Liu Chen was also moved when he saw it. He did make the best efforts, but the method was wrong. Just like in physics, the moment is multiplied by force and the effective distance. No matter how large the force is, the effective distance is almost negligible and there is not much effect.

It’s just that such a simple truth is only understood by hitting countless times and bleeding. Some people have never been able to apply it to practice.

The head teacher of Class 7 stood aside embarrassedly. He scolded Zheng Yuanyuan for a few words. Unexpectedly, the student was so scared that he was so scared that he was heartbroken. After calling the police, he quickly went to find his mother and sister. Finally, he was rescued and breathed a sigh of relief.

The classmates who were pulling the four corners of the quilt were still working diligently. Liu Chen walked up and smiled and said, "Everyone let go, everyone, everyone has saved them, why are you pulling them? Thank you for your hard work."

Although everyone worked hard, they were all very happy. When the others were spectators, they worked hard and felt a sense of honor and pride.

Seeing this scene, Sun Shuren asked with a smile: "Little classmate, what's the point of your life?"

"I set the buffer according to the momentum theorem!"

"Oh, how did you calculate?" Sun Shuren is the physics teacher.

"Ha, I just calculated it briefly. The top of the sphere is about 20 meters high. Including the air resistance, the air resistance coefficient is 1. The air resistance is proportional to the square of the velocity. The landing speed should not exceed 16m/s. Zheng Yuanyuan weighs about 45kg, and the change in momentum does not exceed 720..."

The students all listened with their ears, and they thought it was so interesting. They were all confused just now, and Liu Chen was actually calculating this. Although many people know the formulas in physics, they cannot be used quickly in reality and cannot analyze the model at all.

Zheng Yuanyuan, who was crying, listened to Liu Chen's analysis curiously.

"The impact amount is determined. The next step is to increase the contact time of the collision as much as possible. Flowers and trees and the quilt covered on it can play a certain buffer. The buffering time is still too short. Then tie the corner of the quilt with a blanket and set two layers of buffering at about 1.5 meters and 1.2 meters. I believe that the collision time will definitely exceed 0.5 seconds, so the impact force is less than 1440 knots and is within a safe range."

Liu Chen was also in a relatively relaxed mood and said what he thought.

Amazed!

It actually calculated so thoroughly in a short period of time!

Sun Shuren has taught for many years and has a lot of students all over the world. He has never seen such a talented and agile student. His love for talents has arisen. It’s a pity that the college entrance examination will be in two months.

The soldier who had just saved the man raised his thumb and praised: "I heard from the old man that he would not be afraid of learning mathematics, physics and chemistry. I would go all over the world. Brother, you opened my eyes today. I said why I had a layer of quilt on it? It turned out that there was such a great use."

After hearing this, Zheng Yuanyuan sighed in his heart. It seems that he is not learning this material. Alas! Forget it, go out to work early, and your mother and sister can also relax.

Witch Gu looked at Liu Chen strangely. Why didn’t you find such a student in the class before? This guy is a little weird lately. He doesn’t look like a kid in high school at all. Humph, he was so fierce just now!

Women are all creatures that love to hold grudges.

Sun Shuren smiled and said, "Liu Chen's analysis is wonderful, but I think you're going to be bad!"

"Ah?" Liu Chen grew up his mouth.

"You made so many female classmates' quilts like this and damaged some flowers and trees. What should you do?"

This is to settle the score after autumn. Liu Chen defended: "Principal Sun, I am determined to save people and have no idea what to do. I can't break the bridge like this."

"Hahaha, I'm kidding you. It's your anxiety. Don't worry, I'll help you with these flowers, trees and quilts. I will definitely not let a girl cause trouble for you, okay?" Sun Shuren laughed.

At such an old age, Liu Chen sighed, "That's good."

The students dispersed around, and Witch Gu directly grabbed Liu Chen, and no one around dared to get close.

"You're actually mad at me!"

"Sorry, Teacher Gu, the situation was urgent at that time, and you saw it too. Haha, I can't help it."

"Hmph, for your contribution to saving people, I won't bother with you this time, and I will go back to the classroom and study hard."

"Teacher Gu, you are so strict with me, aren't you afraid that I can't jump off the building?"

Witch Gu pinched his arm directly and cursed: "Bah, crow's mouth, you are so thick-skinned that you won't be overthinking it. If you are so slick, you will ask your parents to come."

"It hurts, it hurts, it hurts, Teacher Gu, you are corporal punishment for the students!"

"It's still physical punishment. You are so thick-skinned and so painful." Witch Gu was so angry that he swears.

"Teacher Gu, it's so unfair. Why can Qian Shuai, Meng Qingqing, and Yang Xue say that if you don't come, you won't come. I have to stay in the classroom all day."

Witch Gu blanched and snorted: "If you can enter the top 30 of the grade, you can do it too."

"Teacher, isn't it a mock exam next week? If I get better, can I be relatively free and don't have to sit in the classroom all the time?" Liu Chen tried.

"Give me a lot of honesty and don't be too ambitious. If you work harder, you can go to a key university. Do you know how big the gap is between first- and second-tier universities? I told you that it is much bigger than you think. If it is 211 again, the advantages will be more obvious in the future."

“Isn’t 985 better?”

"Bah, don't think about 985!" Gu Yuan said angrily. I still want to read 985. Boy, I'm quite big.

Liu Chen stopped talking.

Actually, I'm speechless.
Chapter completed!