There was a physics class in the afternoon. The physics teacher gave everyone a difficult problem on the podium.

He wrote on the blackboard: There is a slope with an inclination angle of θ, and a baffle M is fixed at the bottom of the body, and there are three wooden blocks A, B and C, and their mass is mA=mB=m, mC=3m, and the dynamic friction factors between them and the inclined surface are the same. The wooden block A is connected to a light spring and placed on the inclined surface, and is connected to the baffle M through a light spring, as shown in the figure. At the beginning, the wooden block A is stationary at P, and the spring is in a natural elongation state. The wooden block B is at the initial velocity v0 at point Q point Q.

When moving downward, the distance between P and Q is L. It is known that the wooden block B moves in a uniform linear motion during the sliding process, and immediately moves downward after touching the wooden block A, but it does not stick. They reach a lowest point and then move upward. The wooden block B moves upwardly just back to point Q. If the wooden block A stops at point P, the wooden block C moves downward at the initial velocity 2v from point Q. After the same process, the wooden block C stops at point R on the inclined surface, and finds the size of the distance L' between P and R.

After finishing writing on the blackboard, the physics teacher was a little proud, "Only people can't solve this question. Can anyone in your class solve it?"

The students looked at each other and scratched their heads and heads. This question is too profound and is not within the scope of their knowledge.

The physics teacher said: "It's not your fault. I guess no one can answer this question in the entire higher level."

"That may not be." The person who spoke was Xia Zaoan.

"Classmate, can you?"

"Hahaha." Xia Zaoan laughed to the sky, with a bit of a heroic aura, but she immediately shook her head, "I don't know, either."

"Then why are you laughing at?" The physics teacher, the old pedan, was speechless.

Xia Zaoyan said: "I don't know, it doesn't mean that no one in our class can do it. Now, let me grandly introduce the representative of our class to the king, Qi Mu will appear! Thumb!"

The students immediately burst into warm applause.

Luang Po, who was sleeping on the table and drooling, was woken up. Seeing the students' expectant gazes, she was still stupid.

Mikaka turned around and urged her, "Hey, it's time for you to show off again. Why don't you go up quickly?"

“…”

What a big deal. Fake Qi Mu, that is, Luang Po, don’t be too depressed. Although she imitated Qi Mu’s face and Qi Mu’s face, she could not imitate Qi Mu’s old sauerkraut smell! [Ph. The author has implanted an advertisement again!] In short, Luang Po hates the most because she studied. She failed to pass the elementary school mathematics, let alone ask her to solve high school physics problems?!!

It's so fatal. She was pretending to be Qi Mu and doing bad things, but she didn't expect to pretend to be a top student.

This is too difficult for her.

But due to the warm applause from the audience, Luang Po would probably not be able to do so if he didn't come on stage.

So she walked up reluctantly.

The physics teacher pushed reading glasses, "You are Qi Mu? I heard of you. Last physics exam, you got the full mark. Let me see your skills."

He handed the chalk to Luang Pak.

Luang Po stood on the blackboard, staring at the question, and his head felt a little dizzy.

Uh...silence.

Lasting silence.

The classrooms have become quieter.

A cold sweat flowed down Luang Pu's forehead.

It's over. She thought to herself, I can't solve this and I can't get out of the stage.

But... she is just a fool. How could she think of a way to not be embarrassed?

Seeing that Luang Po stood for a long time and didn't move, the physics teacher understood everything, with a smile on his lips.

"It seems that you don't know this question either. I didn't expect that. The smartest person in the higher grade is just like this. Okay, you go back first."

With the teacher's approval, Luang Po couldn't wait to put the chalk down and then returned to his seat in shame.

Seeing this, Xia Zaoan deliberately raised her voice, "Oh, even Qi Mu can't solve it, then this question is really difficult."

All the fake Qi Mu's face was lost.

The physics teacher returned to the podium and said, "It's normal that I can't figure it out. I see that the students in your class are like this."

His tone was a bit sarcastic. You know, the physics teacher was the head teacher of the next class, so he was deliberately making things difficult for Class 1, Grade 1.

"Teacher!" Suddenly, a small hand was raised, "If you don't mind, can you let me try it?"

"You?" the physics teacher pushed his glasses and saw a primary school student standing at the end of the classroom.

"Are you a student in this class?"

Are you sure you are not a dwarf? The physics teacher almost wanted to say that.

Xiao Po shook his head, "I'm not a student in this class, but I will answer this question on your blackboard."

After hearing his words, the whole class was in an uproar.

A primary school student can actually answer high school physics questions? You're a scam!

Anyway, no one believes it except Xia Zaoan.

Even Mikaka didn't believe it. Although he knew that Xiao Po had some skills, he wouldn't be so smart. Unless he was a legendary genius boy?

The physics teacher was a little angry, "Children, don't talk big. Do you think this is playing? Also, why are you in this class going home quickly?"

Xiao Po walked up slowly, "Teacher, don't rush to drive me away first. See if I answered correctly first."

"Tsk. If you can solve this problem, I will show you the upside down!" The physics teacher didn't know how powerful Xiao Po was, so he dared to make such a bet. Thinking about his age, he still had to learn to stand upside down...

Alas, we can only express deep sympathy.

Xiaopo picked up the chalk, "Then it's a matter of determination."

After saying that, he wrote quickly on the blackboard.

The physics teacher obviously didn't take him seriously. He walked down the podium and chatted to his classmates: "Don't learn from this child, you don't know the world. You have to be down-to-earth. Don't pretend to understand, that's really a big deal."

As he was talking, Xia Zaoan pulled the corner of his clothes and pointed at the blackboard, "Teacher, he has finished answering."

"Ah!" The physics teacher looked back.

Sure enough, Xiao Po had already answered the question. He patted his hands and threw the chalk back.

The physics teacher came up and took a closer look at his answering process, his mouth wider and wider.

Tianlu, this elementary school student actually answered it perfectly!

Moreover, Xiao Po also smiled provocatively and said to him: "Teacher, I know two other algorithms."

“…”

Can all children nowadays go to heaven?

The physics teacher felt like he was dreaming. He had never met such a talented child in his entire life.

If you can't do it well, this little devil will win the Nobel Prize in the future!

"Teacher." Xiao Po walked to the physics teacher with a smile, "Do you remember what you said? You probably won't go back on your word!"

"..." The physics teacher's beard shook and wanted to cry, but couldn't cry.

Unexpectedly, he, a highly respected and loved people's teacher, fell into the hands of a little broken child.

Too embarrassing.

Woo. I'm afraid only Mikaka can deeply understand the physics teacher's mood at this moment.

"Dingling!" As the bell rang, a group of students gathered in the corridor, watching the physics teacher doing a trembling handstand.

Xiao Tou walked back from the podium coldly with one hand in his pocket.

It’s the physics teacher who makes it boring, and it has nothing to do with him.

Scream, this kid is so arrogant. Luang Po was very upset when he looked at Xiao Po who came back. Hey? Suddenly, she seemed to have discovered something. Why is this Xiao Po somewhat similar to Zhen Qimu?

A bold guess flashed through Luang Po’s mind: This child will not have anything to do with Qi Mu, right?

Could it be that he... was Qi Mu's son smashed?!!

No, no, Qi Mu is only 17 years old, and this little po is about twelve years old. Qi Mu can't give birth to him at the age of five.

Luang Pra gave up this nonsensical idea.

But she always felt that this little trick is not simple, and a primary school student can actually answer high school physics problems?

Maybe this kid...has a strong source of power?

In order to verify his thoughts, Luang Po waited for Xiao Po to come and secretly stretched out his foot to trip him. If he avoided him, then this little ghost would not be an ordinary person. On the contrary, Luang Po's suspicion of him would be eliminated.

Of course, Xiao Po saw through Luang Po’s intentions.

She stretched out her feet just to try herself. Xiao Po thought, so he had to pretend that he didn't see it. He tripped by her and fell to the ground.

"Oh, kid, you didn't fall." Luang Po helped him up falsely, then took the opportunity to put a spell on his back.

If this talisman encounters a person with high source power, it will spontaneously ignite.

"Thank you brother. I'm fine." Xiao Po stood up, patted his knees, but said coldly in his heart: Spellman, I'll deal with you in the future.

"It's fine." Luang Po said, secretly watching the reaction of the talisman.

The talisman is pretty good, without spontaneous combustion.

In other words, this little ghost has no source power.

Scream, it’s just an ordinary little devil, at most he’s just a little clever.

Thinking of this, Luang Po felt relieved.
Chapter completed!