According to Cheng Jiali's guess, the bicycle should have been lost before the second class in the morning, which means that her bicycle would be stolen during this class. And the only thing she had to do was to change this qiē before it did.

She watched upstairs for a while, secretly glad that her car was still in place. She didn't care about anything else, and rushed downstairs, but she was looking for a way to save her bicycle from theft.

"Miniature opens." Miniatures?

Here's how to use it:

The miniature can shrink anything at will, and the owner simply presses the OK button and the miniature bike will fit snugly against the owner's clothing.

The screen above was flashing, the OK key was dazzling, Cheng Jiali pouted and hesitantly pressed the red button.

What does that snugly fit mean? Cheng Jiali just wanted to ask, but when she saw the bicycle pattern on the school uniform, she understood.

This time Cheng Jiali is relieved, and she will no longer worry about the car being stolen in the future, she can shrink it, and it will be great if you think about it.

But Cheng Jiali couldn't help but think of another problem, after all, it is not a long-term solution for students to park their cars at the school gate, who can guarantee that they will not lose it.

So she solemnly reported the matter to the head teacher Chen Liming, Chen Liming was also easy-going, first sincerely praised Cheng Jiali for her enthusiasm, and later promised that he would report this matter to the school.

Cheng Jiali knew that her physics grades had always been bad, so she listened very carefully in physics class. In fact, this is not the main reason, the key is that there is a student next to her, and her current ambition is to try to be on par with the top student.

The physics teacher is an old man, but he is an experienced old teacher. He has his own unique teaching method, and often emphasizes to students that physics does not rely on memorization, but on methods, as long as certain skills and methods are mastered, grades are not a problem.

Having said that, what Cheng Jiali lacks most is skill, and she feels big every time she sees those rigid physical formulas. She also deeply understands that rote memorization of formulas is useless, and the key is to use them flexibly.

As long as it's not something she's interested in, she's particularly prone to wandering, physics is more difficult, and she's not naturally interested in these theorems, so she seems to have her eyes on the blackboard, but she doesn't know what to think in her head.

The biggest feature of physics teachers in class is that they love to ask their classmates to answer questions, and sometimes they even have to do questions on the blackboard. Cheng Jiali is very nervous every time she takes a roll call, she is always afraid of calling herself, it's okay to make a mistake, the key is that she won't.

She was thankful that she had never been pointed.

When she stared at the blackboard and giggled, a low hoarse voice calling her name floated over, which made Cheng Jiali startled, thinking it was her own auditory hallucination. Busy pricking up ears and listening carefully.

When her name rang again in the huge classroom, her smile instantly froze on her face.

"You come up and solve this problem." Cheng Jiali scratched her head and laughed twice, and the physics teacher's wrinkled face was always calm. It's like there's never room for negotiation.

The corners of Cheng Jiali's mouth twitched, and she found that there have been a lot of strange things since she was in the second year of high school, and the teachers of various subjects always like to call her name......

She got up from her seat, walked slowly to the podium, timidly took the chalk handed to her, and looked up at the blackboard full of writing, and suddenly felt a headache.

Her inquiring gaze shifted to the left, and the title with Newton's laws was unusually striking.

Newton's laws? Doubts flashed through her mind, and the flattened tip of her pen slid down to the question mark.

The instantaneous effect of the force is acceleration rather than velocity. Acceleration? Cheng Jiali flashed a group of pictures in her mind of many people playing with the big rope.

Cheng Jiali closed her eyes, and when she opened her eyes again, there were really many people playing with the big rope in front of her.

She has also played such games, which are not very old games. Two people who are not far apart are responsible for shaking, others consciously form a square, and each person must pass through a large rope that is wound in a semicircle to be considered guò.

Cheng Jiali wanted to look around, but was surprised to find that there was only a group of people jumping rope here.

But she quickly recognized that this was the school's playground, and she couldn't help but feel strange, there were a lot of people on the playground, but it seemed a little deserted at this time.

And the attention of those people seemed to be focused on the rope, and none of them found her.

She wanted to walk over and even join them in the game. But in the end, they found themselves floating in the air, and it stands to reason that they should be able to see themselves.

When she found her floating in mid-air, the first thought that came to her mind was that she was hanging again. She instinctively thought that only when she was dead would her soul float in the air.

"The instantaneous acceleration of a force is a displacement, just moving at a speed of 500 meters per second, and its change is barely visible to the naked eye. As long as there is a forceful deposit, there will be an acceleration deposit, and there is a correspondence between them. The large rope that is shaking is making a semi-circular motion. ”

Cheng Jiali didn't know where this ethereal voice came from, but her eyes were looking for its source.

The suspicious gaze finally fell on the shaking rope, which shook so much that she felt dizzy. She rubbed her eyes, her gaze continuing to lock on the large undulating rope.

I just felt that my eyes were sore, but now I feel that it is clear. According to Fang Cai's voice, she should not have been able to see the speed display, but now she could clearly see the point of accelerated movement.

The more the rope swayed, the faster her eyes rolled. She felt that it was clear in her brain that what she remembered was no longer a rigid formula theorem, but a tendency to move.

She closed her eyelids, and what appeared to her was a variety of formulas. FX=max，F=ma…… A small smile tugged at the corners of her mouth.

With the feeling of Fang Cai, she easily wrote down the process of solving the problem, and at the moment of closing the pen, she also retracted her mind and raised her eyes to see the shock in the teacher's eyes.

"Wizard, wizard......" The physics teacher kept saying these two words. Cheng Jiali obviously saw a teardrop hanging from the corner of her eyes that had been through vicissitudes.

Cheng Jiali didn't know why the always eccentric physics teacher would give her a big hug, and she silently walked back to her seat under the surprised eyes of the whole class.

The old voice of the physics teacher sounded: "Cheng Jiali actually used another method to solve this problem, which is a new method, which we will cover in the study of the third year of high school." Everyone gave applause to Cheng Jiali. ”