Xueba's Sea of ​​Stars

Chapter 9 Did you teach yourself? ? ?

Liu Yushan, who was grading papers in the office, saw Wu Bin coming in, stopped writing and said, "If you have any questions, ask them tomorrow. I'm busy."

"Oh, it's okay. Teacher Liu, you are busy. I'm here to find Teacher Cai."

Liu Yushan was taken aback after hearing this, and felt a little lost in his heart.

Cai Guoping, who was looking at the playground and thinking about life at the moment, turned his head when he heard Wu Bin call his name, and said, "Oh, I finally remembered that you can only get zero marks in physics."

"This... Teacher Cai, I will work harder next time." Wu Bin, who was stabbed suddenly, couldn't fight back. After all, he just handed in a blank paper to this teacher in physics class this morning.

"It's good to have this thought, but what are you going to ask at this hour after class, study hard at night, and come back at noon tomorrow." After finishing speaking, Cai Guoping made a gesture of repelling Wu Bin.

"Mr. Cai, I'm not here to ask questions. I'm here to ask if you have any papers for the freshman year of high school. Any papers will do."

"Paper? Why do you want a paper?"

"I want to do it."

"Huh?" All the teachers in the office who knew Wu Bin looked at him immediately.

"Hey... don't you look down on physics!"

Cai Guoping was almost laughed at by Wu Bin. He is obviously a kid who takes duck eggs in both mathematics and physics, but when he comes to ask mathematics, he always asks basic questions. Physics is better, and he directly asks for papers.

"No, teacher, you misunderstood, I..."

"Stop talking, come here, come here, I'll ask you a few questions, and if you answer correctly, I'll help you find the paper." Cai Guoping interrupted Wu Bin and waved to him.

Wu Bin felt pain in his ass just now, just now he came to ask for papers when his brain got hot, but he didn't expect that in the eyes of the teacher, he wanted to reach the sky in one step.

But now that I have done everything, I have to bite the bullet and continue.

"Then Teacher Cai...don't ask too hard." Wu Bin walked up to Cai Guoping and said cautiously.

"Okay, I'll ask you some basics." Cai Guoping thought for a while before asking, "The taxi fare is [-] yuan per kilometer. Here, every kilometer refers to displacement. Is this correct?"

"No." Wu Bin shook his head.

"Why not?"

"Because if I take a taxi and go around the city, the displacement will be 0, but if I don't pay the money, I should be beaten to death by the driver."

"Pfft." The biology teacher Jiang Lan sitting in front of Cai Guoping couldn't help laughing.

"Seriously, what does each kilometer refer to?" Cai Guoping continued to ask.

"It should be the distance." Wu Bin tried his best to be modest.

"Well, let me ask you one more question. The second second refers to the period from the end of the first second to the beginning of the second second. Is this correct?"

"No, the end of the first second and the beginning of the second are the same moment."

"Oh, I've read some basics. Let's do another question."

"Teacher Cai... I just asked a few questions as promised." At this moment, Wu Bin already understood that the teacher would not stop until he was stumped.

"Just do what you are asked to do. There are so many words." After Cai Guoping finished speaking, he wrote a question by hand, "Come on, just do this question."

In a football match, the player kicks the ball horizontally at a speed of 12m/s. The movement of the football on the ground can be regarded as a linear motion with uniform deceleration, and the acceleration is 2m/s2.Find: (1) the furthest distance x of the football on the ground, (2) the speed of the football at the end of 7s v.

"..."

Wu Bin is also convinced, the teacher is self-willed, giving the questions on the spot, awesome!
After reading the topic for a while, Wu Bin stretched out his hand to Cai Guoping and said, "Mr. Cai, please lend me a pen."

"Here, take it." Cai Guoping passed the black fountain pen in his hand to Wu Bin.

"Thank you, Teacher Cai."

After thanking the teacher, Wu Bin bent down and started to solve the problem.

解：（1）已知初速度 v0=12m/s，加速度 a=-2m/s2，末速度为：v=0
From the square of v - the square of v0 = 2ax: x = v square in 2a
"Wait...you really know how to do it?"

Seeing that Wu Bin really started to solve the problem, Cai Guoping was a little confused. Although this problem is not difficult, it is definitely not something that a duck egg player like Wu Bin can solve.

"Yes, yes." Wu Bin nodded.

"Then you still keep handing in blank papers?" Cai Guoping almost wanted to knock on Wu Bin with a book.

"I've only recently started teaching myself."

"Self-study? I... You, hey, okay, tell me, how far have you learned by yourself?"

"Physics in the freshman year of high school, I almost... probably understand a little bit."

"Okay, the tone is big enough!"

Wrong!Wu Bin felt that he was humble enough, but he didn't expect to offend this boss.

At this time, Chen Fang happened to enter the office. Seeing Cai Guoping's excited look, she asked, "What's wrong with Teacher Cai? Did Wu Bin do something bad?"

"Teacher Chen, you came just in time. The next class for Class 3 is yours. Can you just let this kid stay in the office?" Cai Guoping looked at Chen Fang and asked.

Chen Fang was taken aback for a moment, then nodded: "That's all right, anyway, he doesn't listen to my lectures, but Mr. Cai, why do you want to keep him?"

"This kid said that he has fully understood the physics in the first year of high school. I want to try to see if he understands it."

"Ah!? I'm not, I didn't..."

At this moment, Wu Bin felt that the teachers were unreasonable!
(End of this chapter)