Chereads / Top student / Chapter 19 - It's My First Time Doing This Kind of Question

Chapter 19 - It's My First Time Doing This Kind of Question

Gao Shang's words are sincere.

According to Gao Shang's estimate of the two, they both have at least the potential to save three, and maybe they can save two and one.

Even better than many top class students.

At the beginning, Xu You really couldn't keep up.

But after entering the deep learning state, Gao Shang's lecture speed was completely within Xu You's acceptable range, and Xu You even felt that Gao Shang could speak a little faster.

Of course, if these words were said directly, it would be easy for people to misunderstand that they were talking ironically.

"I feel fine, and I can keep up for now. I will definitely ask the teacher if I have any questions."

Xu You answered very politely, and Gao Shang couldn't help but nodded.

There are indeed not many students who can keep up with their own pace in class for the first time.

But Lu Zhiyao really couldn't keep up with Gao Shang's lecture rhythm.

Lu Zhiyao has long been used to self-study, and is not very used to the noble way of teaching.

But in front of Gao Shang, Lu Zhiyao couldn't speak directly, and just nodded perfunctorily.

After a few days of class, Gao Shang felt that everyone was getting used to it, so he decided to take out a question to test everyone's learning effect.

"This is a difficult question for the rematch. Because some students may have done it before, I made a little change. You will be given a maximum of 40 minutes. If you answer it within 20 minutes and it is correct, you are considered excellent. Students who have answered it will submit it directly. Give it to me."

Hearing Gao Shang's words, the students couldn't help panicking.

"What are you doing? You haven't done many questions in the preliminaries, so you come to the questions in the rematch?"

"Yeah, I don't know if I can pass the preliminaries."

"I heard that there is no easy question in the rematch, and it is not easy to get a single question right."

Looking at the flustered appearance of the students, Gao Shang snickered in his heart.

"Usually, everyone is very good. If you think the high school physics questions are easy, this time I will kill your spirit."

Different from the preliminaries, the theoretical part of the rematch is all big questions.

Eight big questions, a total of 3 hours.

Calculated, each question can only be allocated to a little over twenty minutes.

Of course, you don't want to be noble. With everyone's current level, how many people can solve this problem within 20 minutes.

Those who can reach this level, not to mention provincial first, are very promising to enter the provincial team.

Amidst howls, Gao Shang cast the title on the big screen.

Seeing the text on the screen, the students were stunned for a moment.

The word count of this topic is too much!

If you don't know it, you might think it's a Chinese explanatory reading.

"A homogeneous solid cue ball with a mass of m and a radius of r is placed on a horizontal table, and the sliding friction coefficient between the cue ball and the horizontal table is μ. Adjust the cue to the vertical plane passing through the center of the ball to keep it horizontal , and hit the upper part of the cue ball..."

There are hundreds of words in the title alone, and it also contains more than ten physical quantities.

This makes many students still confused about the topic after reading the topic.

Of course, there are also a few students who have already read the topic and started to enter the process of thinking analysis.

Among them, Hu Shucheng was included.

Hu Shucheng is a real physicist.

If others can sometimes score 100 points in physics, it is because they have the ability to score 100 points.

A score of 100 in the physics test of Nahu Shucheng can only mean that the full score is only 100 points.

"I should have done this question, just changed a few conditions and data a little bit."

Such a semi-final level question, for Hu Shucheng, is strong enough to do.

To put it bluntly, this question is a model of billiard hitting.

It involves physical processes such as bumping, turning, rolling, etc.

But as long as the knowledge of rigid body mechanics is mastered, it can still be done.

Scratching his curly hair with his left hand, Hu Shucheng has already begun to write a line of formulas with his right hand.

"For the process of hitting the ball, apply the momentum theorem of the motion of the center of mass of a rigid body, there is..."

"The moment of impulse relative to the center of mass of the cue ball is..."

"According to the theorem of angular momentum, there is..."

unconsciously , Hu Shucheng has written more than ten formulas.

"Phew~ it's finally coming out!"

Seeing that only fifteen minutes had passed, he was only short of the final result of the second question.

Hu Shucheng knew that he would definitely get full marks within 20 minutes.

At this time, most of the students in the classroom have just had a clue to solve the problem.

Those who can finish the first question are considered fast.

Sure enough, I, Hu Shucheng, are still the hope of Shengcheng No. 4 Middle School in this year's National Physics Competition for Middle School Students.

Just when Hu Shucheng was about to calculate the final result and was the first to hand in the paper.

Hu Shucheng saw from the corner of his eye that a figure beside him had gotten up.

"Huh?"

Hu Shucheng took a closer look and found that it was Xu You.

"Is this...impossible?"

According to what Xu You said before, he has only just learned Wu Jing for more than a week.

How could he do it faster than a veteran with competition experience like himself?

Could it be that Xu You has done the original question of this question before?

Impossible, I can't do many preliminaries in this amount of time, let alone the rematch questions.

Hu Shucheng felt that even if Xu You did it, it was probably wrong.

When Gao Shang saw Xu You coming forward first, he was also grumbling in his heart.

Of all the competition students I have taught, none of them can do as fast as a regular class student who is new to competition?

Although Xu You's talent is indeed outstanding, it's a bit unbelievable that he can solve the rematch questions in fifteen minutes for the first time.

"Xu You, are you finished?"

"Well, teacher, please take a look, I don't know if you are right."

This is also the first time Xu You has done this kind of question, and he is not fully confident in his answer.

After taking Xu You's notebook, Gao Shang first glanced at it.

The process looks very cumbersome, and there are several alterations.

It can be seen that this is really the first time to do this kind of question.

Gao Shang subconsciously felt that there was probably something wrong with what Xu You did, so he didn't rush to see the result, and looked at the process step by step from the beginning.

"Hmm...the first few steps are fine..."

"This calculation is indeed OK, the speed is correct..."

"The calculation of the acceleration is a bit troublesome, and it has gone around a bit, but it can't be wrong..."

Looking down step by step, the whole process, although a bit cumbersome, has no theoretical mistakes.

Gao Shang could clearly see that this was the topic that the students who had just come into contact with the competition did.

I didn't use any problem-solving skills, and I figured out every step by myself.

However, relying on his strong problem-solving ability, he insisted on calculating the result.

Although the process is not worth advocating, it is absolutely possible to get full marks.

What is even more incomprehensible to Gao Shang is that although Xu You's method of solving the problem is troublesome, he does it very quickly, and he is the first in the class to do it.