Liu Yushan, who was grading papers in the office, saw Wu Bin coming in, so he stopped his pen and said, "If you have any questions to ask tomorrow, I'm busy." ”

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

Liu Yushan was stunned for a moment after hearing this, and felt a little lost in his heart.

Cai Guoping, who was looking at the playground and thinking about life at this time, turned around and said, "Ouch, I finally remembered that you can only take the physics test." ”

"This ...... Mr. Cai, I will work hard next time. Wu Bin, who was suddenly stabbed, couldn't fight back, after all, he had just handed in a blank paper to the teacher in physics class in the morning.

"It's good to have this thought, but what are you going to ask at the end of class at this point, read a book in the evening self-study, and come back at noon tomorrow." After Cai Guoping finished speaking, he made a gesture to Wu Bin to drive away.

"Teacher Cai, I'm not here to ask questions, I'm here to ask if you have any papers for the first year of high school, any paper."

"Rolls? What do you want rolls for? ”

"I want to do it."

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

"Hey...... Look down on physics, right? ”

Cai Guoping was simply laughed at by Wu Bin, obviously he is a kid who takes both mathematics and physics, but when he comes to ask mathematics, he asks basic questions, physics is good, and he wants to do the paper directly.

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

"Don't say it, come on, come here, I'll ask you a few questions, and I'll help you find the paper if you answer it correctly." Cai Guoping interrupted Wu Bin's words and beckoned to him.

Wu Bin's egg hurt now, just now his brain was hot and he came to ask for the roll, but he didn't expect that in the eyes of the teacher, he completely wanted to climb to the sky in one step.

But now that I've done everything, I have to continue to do it.

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

"Okay, I'll ask you for some basics." Cai Guoping thought about it after speaking, and asked: "The taxi fee standard is six per kilometer, and each kilometer refers to displacement, is this sentence correct?" ”

"That's not right." Wu Bin shook his head.

"Why not?"

"Because if I get in a taxi and go around the city, the displacement is zero, but if I don't pay for it, I should be killed by the driver."

"Poof." Jiang Lan, the biology teacher sitting in front of Cai Guoping, couldn't help laughing out loud after hearing this.

"Seriously, what does this mean per kilometer?" Cai Guoping continued to ask.

"The journey, it should be." Wu Bin tried his best to be modest.

"Well, let me ask you again, second 2 refers to the period from the end of the first second to the beginning of the second second, right?"

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

"Ouch, I've looked at the basics, so let's do another question."

Teacher Cai...... Didn't you just ask a few questions? At this moment, Wu Bin already understood that this teacher might not stop until he stumped him.

"If you want to do it, you can do it, so much talk." After Cai Guoping finished speaking, he directly wrote a question with his bare hands, "Come, just this question, do it." ”

In a soccer match, the athlete kicks the ball out in the horizontal direction at a speed of 12m/s, and the motion of the football on the ground can be regarded as a uniform deceleration linear motion, and the acceleration is 2m/s2.

“……”

Wu Bin is also convinced, the teacher is willful, give the question on the spot, awesome!

After reading the title for a while, Wu Bin stretched out his hand to Cai Guoping and said, "Teacher Cai, please lend me a pen." ”

"Oh, take it." Cai Guoping smoothly handed the black pen in his hand to Wu Bin.

"Thank you, Mr. Cai."

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

Solution: (1) The initial velocity v0=12m/s, the acceleration a=-2m/s2, and the final velocity are: v=0

From the square of v - the square of v0 = 2ax: x = 2 times a v squared

"Wait...... Do you really know how to do it? ”

Seeing that Wu Bin really began to solve the problem, Cai Guoping was a little confused, although this question is not very difficult, but it is definitely not something that a duck egg player like Wu Bin can do.

"Yes, yes." Wu Bin nodded.

"Then you've been handing in blank papers?" Cai Guoping almost wanted to take the book and knock it at Wu Bin.

"I only recently started teaching myself."

"Self-taught? I...... You, hey, okay, tell me, how far have you learned? ”

"Physics in the first year of high school, almost...... I guess I know a little bit about it. ”

"Okay, it's big enough!"

Wronged! Wu Bin felt that he was humble enough, but he didn't expect to provoke this big guy.

At this time, Chen Fang happened to enter the office, and when she saw Cai Guoping's excited appearance, she asked, "What's wrong with Mr. Cai?" Did Wu Bin do something bad? ”

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

Chen Fang was stunned for a moment, and then nodded: "Okay, yes, he doesn't listen to me anyway, but Mr. Cai, why do you want to keep him." ”

"This kid said that he has completely understood the physics of the first year of high school, and I want to test whether he understands it or not."

"Huh!? I'm not, I don't have ......"

At this moment, Wu Bin felt that the teachers were unreasonable!