"If you want to solve the uniform deceleration straight line ...... with zero final velocity"

"Reverse thinking."

"Okay, I've learned to answer, right, ask again...... Forget it, I won't ask you. ”

After leaving Wu Bin in the office, Cai Guoping kept throwing out all kinds of physics questions in the first year of high school, but they were all answered by the kid in front of him, whether it was formula substitution or some easy-to-mistake questions, he answered very decisively.

Hearing that Cai Guoping finally stopped throwing questions, Wu Bin was also relieved, in the past half an hour, he felt that he was simply participating in the program "One Stop to the End", so tired that he couldn't do it, but fortunately, Cai Guoping didn't throw out some problems because he couldn't ask him, but kept asking questions around the basics.

"How long have you been teaching yourself?" Cai Guoping asked Wu Bin when he walked to the water dispenser to pour water for himself.

"Hmm...... About a week. ”

At this time, Wu Bin would never dare to say that he had only studied by himself for an afternoon, otherwise the teacher in front of him would be afraid that he would have to jump.

"Oh, I don't think you've been tossing around math."

"I watch it in the evening self-study, and I'm still very interested in physics."

Hearing this, Cai Guoping's face finally showed a smile, "It's a good thing to be interested, as the so-called interest is the best teacher." ”

"That's what Teacher Cai said."

"Wait a minute, I'll see if I have any freshman papers." Wu Bin naturally passed the test, so Cai Guoping sat back at the desk and rummaged through the cabinets, and when he opened the second drawer, he asked while looking for it: "Have you seen the electricity part?" ”

"I haven't read the book of the first year of high school yet." Wu Bin shook his head, electricity is the focus of the second year of high school, and he has no concept in his mind.

"Then you can hold on to it, electricity is more interesting than force."

"Okay, I'll watch it at night."

Now Wu Bin's confidence in learning physics is completely bursting, and he is confident that he can control thunder and lightning with only one evening self-study time!

After a while, Cai Guoping took out two scrolls and said to Wu Bin: "I really don't have this volume of pure mechanics, you can take this set and make it first, and I'll help you find it tomorrow." ”

"Thank you, Mr. Cai."

Wu Bin took the test paper with both hands, and couldn't wait to spread it out.

The first multiple-choice questions are more basic points, such as asking which of the following groups belongs to the basic units of the International System of Units, the correct statement about the motion of curves, etc., and then the next few questions that require operation are not difficult and can be solved easily.

These basic knowledge are completely engraved in Wu Bin's mind, and there is no reason for mistakes.

But the next big question made Wu Bin stuck.

Cai Guoping, who had been watching Wu Bin do the question, was stunned when he saw him, and said: "Which formula is used when it comes to the problem of time and the problem of displacement of descent?" ”

"Displacement Time Formula." Wu Bin replied in the affirmative.

"Then what are you still thinking?"

"I'm thinking about how to solve the second question......"

This sudden question about free fall shattered the expansion that Wu Bin had just built up in an instant, he originally thought that as long as he understood the formula, he would not be afraid of any questions, and the so-called exam questions were just turning the content of the book on seventeen or eighteen turns, and they were all paper tigers!

But now he knew he was wrong, this bend was a five-in-a-row hairpin bend! It's too much of a test to operate!

"Hey! That's right, I don't know how to do it. Seeing Wu Bin deflated, Cai Guoping smiled brightly.

'Childish middle-aged man! ’

After silently complaining in his heart, Wu Bin asked flatteringly: "Teacher, teach me." ”

"Listen, when you see this kind of problem series, it's best to use the whole process method, and there is also a segmented method, I'll teach you later."

After speaking, Cai Guoping began to patiently explain the problem solving method to Wu Bin.

"So now you know the average speed of the last 1 second, right?"

"20m per second?"

"By the way, isn't it easy?" Cai Guoping put down his pen and looked at Wu Bin.

"After listening to the teacher, I think it's very simple, the teacher is awesome!"

After solving this problem, Cai Guoping's image in Wu Bin's heart finally changed from a "reluctant and naïve middle-aged old man with hair loss" to "a physical god with an aura!" ”

"This kind of question is not worth two words, the difficult ones are still to come, continue to do it." Cai Guoping said that although he said this, he was still a little proud between his eyebrows, and he understood why Liu Yushan slowly did not stop Wu Bin from praising him later, this feeling of being adored by students is indeed beautiful.

Then, under the guidance of Cai Guoping, Wu Bin did all the questions he could do in several sets of papers in the office, and he was a little unsatisfied.

"Alright, it's almost time, let's go to the cafeteria." After teaching the last question, Cai Guoping looked at the clock on the wall and said.

"Okay, thank you, Mr. Cai."

In fact, of course, Wu Bin felt that he hadn't done it yet, but he was embarrassed to delay the teacher too much, so he had to reluctantly say, "Teacher, can you give me a few more papers?" ”

Cai Guoping was stunned for a moment after hearing this, and then laughed and said, "Hahaha, okay, I'll pick two for you." ”

Wu Bin, who finally got the paper, bowed and left the office with a happy face, looking forward to having fun again during the evening self-study.

"Teacher Liu, it's really interesting to teach this kid."

Waiting for Wu Bin to leave, Cai Guoping looked at Liu Yushan and said while sorting out the teaching materials.

"It's interesting." Liu Yushan smiled, "I just can't figure out how a person who basically gave up studying two years ago can become so motivated, it can be said that he is more ...... than any student I have ever met." Tsk, how can I say that? ”

"Eager to learn." Cai Guoping answered.

"Yes, that's how it feels, after all, the eyes of the question don't deceive."

"Hahaha, if you want me to say that I want to roll the eyes, it won't deceive." Thinking of Wu Bin's expression when he asked for the roll just now, Cai Guoping laughed again.

Liu Yushan also smiled after hearing this: "He reminded me of my little grandson's expression when he wanted to play more game consoles on the weekend." ”

"Yes, yes, that's how it feels." Cai Guoping strongly agreed, "How can you say that this person can change so much, tsk, probably this is puberty." ”

Cai Guoping shook his head and sighed, and continued to sort out the teaching materials.

After eating dinner in the cafeteria, Wu Bin immediately rushed back to the dormitory to find out the physics books of the sophomore and junior years of high school.

The ending was not as Wu Bin expected, in just two self-study classes, he finished reading the physics of the second year of high school, but just when he was about to open the physics book of the third year of high school, he suddenly remembered that today's three-hour system tutoring was useless, so he immediately took out the math book and began to study with the thought that he did not dare to waste it.

"Ah, life, it's so fulfilling."

Wu Bin, who was holding a math book, couldn't help but sigh.

"Disgusting!"

From the scumbag next door, Gu Fan couldn't help complaining.