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"If an ordinary adult bear falls into a bear hunting trap as deep as 58 feet 85 and falls for a breath, what color is this bear?"

This is the question of the third question of this round of the essay exam.

At first glance, this question is complete nonsense.

The previous part of the question seems to be another technical question, but it turns out that the end is asking what is the color of the bear?

What about the cheat!

It's a joke!

Who knows what color this bear is?

I want to know if you ask the bear to go!

I'm afraid that the person who wrote the question has something wrong with his brain, right?

Schizophrenia, right?

This Nima question stem and the question are not next to each other, okay!

This is also the reason why the scattered cultivators present are so angry.

They felt that Lawson's hand was hacked by Cuiweilou.

That's why I drew such an unreasonable question.

But in fact, Rosen already knew the answer the first time he saw the question.

This has nothing to do with his educational background.

It has nothing to do with the training of the working group.

Purely because,

This question, Rosen has seen.

Not in the girders.

but on Earth.

So he knew that there was actually a solution to this problem, but the idea of solving the problem was more complicated, or more precisely, the real content of this problem was not only mathematics, but also physics and geography, and even mixed with some geology and zoology.

That's where the problem lies.

Rosen knew the answer, but he didn't know whether to say it in public.

He only knows how to solve this problem in the way of the earth, but he does not know how to deduce the conclusion as a person of the Great Liang.

In other words, he could not explain the solution to the problem.

Why?

Because in order to solve this question, you need to understand two important concepts, and you also need to apply physical formulas.

These two important concepts are:

Gravitational acceleration!

Air resistance!

The corresponding physical formula is:

s=1/2gt^2。

f=（1/2）cpsv^2。

So, in Daliang Country, is there any research related to physics?

Rosen didn't know.

In other words, if it is an analogy with Chinese history, before the Qing Dynasty, did any of our dynasties have ever made research and achievements in physics and made important achievements?

Yes.

As early as the Spring and Autumn Period and the Warring States Period, the Mohist "Book of Ink" once had descriptions such as the principle of levers, the theory of buoyancy, and even in the fields of acoustics and optics, there were records of various physical knowledge such as the relationship between light and shadow, and the imaging of small holes.

Good.

So even if Daliang has an amazing consistency with Chinese history on the development path of scientific research, there is still a problem that cannot be avoided.

Whether it is mathematics or physics, at this time, the beams should only have a theoretical basis!

There is no formula!

This is a very real dilemma.

In the first question of the literary examination, the distance between Meijiazhuang and Qingshixi is required to be calculated.

This problem can be calculated even without mathematical formulas and equations, but it will be more troublesome and time-consuming.

The use of formulas only simplifies the process of calculation and greatly shortens the time to get an answer.

But the concept of this third question is different.

In the absence of physical formulas, it is impossible to move an inch!

Therefore, this is an exam question that should not have appeared in Daliang Country.

But it was so clearly placed in front of Rosen.

It's very uncomfortable.

So if it is according to Rosen's original knowledge, what are the steps to solve this question?

There are two scenarios that need to be broken down here.

One is to assume that the falling bear is in free fall, i.e., ignoring air resistance.

Second, we naturally have to consider the effect of air resistance.

Different ideas for solving problems, of course, the answers obtained are completely different.

First of all, if you ignore air resistance,

Then you can use the free fall formula of junior high school physics: s=1/2gt^2 to solve it.

The s here stands for the distance, which is 58 feet 85, which is 19.617 meters.

t stands for time, which is a breath, which is converted to 2 seconds.

Substituting the formula, it can be easily derived.

g=/s^2。

This g is the acceleration due to gravity, also known as the gravitational coefficient.

If it is placed in the usual junior high school exam, g is basically regarded as a constant, and the value of 9.8 is substituted.

But in fact, g is not a fixed value.

This is the knowledge point that only the earth knows!

Because the earth is flattened and has the largest radius in the equatorial direction, the gravitational force is small, and on the contrary, the poles have a small radius, so the gravitational force is large.

And the gravitational force of each place is equal to the gravitational force minus the centripetal force, the centripetal force is different at different latitudes, and the radius of the centripetal motion is equal to the radius of the earth multiplied by the cosine value of the latitude.

So the centripetal force of the poles is the greatest and the gravitational force is the least. The centripetal force of the poles is 0 and the gravitational force is maximum.

The gravitational coefficient g naturally changes slightly with the change of latitude and longitude.

So, when g=/s^2, where is it on the earth?

44 degrees north and south latitude.

According to the geographical distribution of bears, there are no bears in the southern hemisphere, so the bear that fell into the trap must appear in the northern hemisphere!

At this point, most of this problem has been solved.

Next, we make a guess based on the limited amount of information in the question stem:

Since this trap is a bear hunting trap specially set up by hunters, it must be aimed at terrestrial bears, because terrestrial bears have poor eyesight and are difficult to distinguish traps, so they will fall into it so easily.

The depth of the trap is nearly 20 meters, which indicates that the soil where the trap is arranged must be the impact parent material, so that it is easy to excavate.

In the end, since the hunter is willing to take such a big risk to hunt an adult bear with a fierce temperament and a great danger factor, what he intends is nothing more than the value of the bear itself, such as bear bile, bear paw, etc.

The geographical distribution of various land tin bears in the northern hemisphere, as well as the likelihood and value of their hunting, are summarized.

There is only one answer.

This bear is an Asiatic black bear.

So the color is, naturally, black.

This is a situation where it is assumed that the bear falls into a trap and is doing a free fall motion.

So, what if you consider the effect of air resistance?

The specific calculation process will not be repeated, only the results will be mentioned here.

After applying the relevant physical formulas of air resistance, it can be concluded that on the basis of the first answer, g will produce a relative error of 3-4%.

Recalculated g=/s^2.

Consistent with the North Pole.

So it's a polar bear.

The color, naturally, becomes white.

The answer is on the lips.

But Rosen didn't know whether to say it or not, and if he did, it wouldn't cause any trouble.

The ghost only knew that in the Great Liang Kingdom, in this small Cuiweilou literary examination, why did such a question with a strong sense of disobedience appear?

Is there any conspiracy in this?

Could it be that his identity as an earthling has been discovered?

If you wait a while, Cuiweilou asks yourself how to solve this problem.

What should I say?

What is gravitational acceleration, what is air resistance, what is geographical distribution, what is the equator and poles?

!

Who understands it!

Do you still have to popularize junior high school physics knowledge with the big guys here?

What's the matter, this is ready to launch a vigorous industrial revolution in the Great Liang Kingdom?

Planning to overthrow the feudal rule of the Liang royal family?

It's better to say that it's a blind guess!

Huh?

Wait a minute......

Thinking of this, Rosen's mind suddenly flashed, and finally raised his right hand when a stick of incense was just halfway burned.

"Red!"

When the words fell, all the scattered cultivators outside the venue, including Zhou Qingchen and Peng Chen, were all stunned.

What's that?

Bears and red ones?

Let's not talk about whether this answer is reliable or unreliable, it's not realistic, the key is how did you figure it out?

Fortunately, Rosen didn't make everyone's surprised expressions last too long, because his next words immediately made everyone suddenly realize.

"Orange, yellow, green, cyan, blue, purple!"

Now, everyone understands.

It's been a long time, this Lawson is guessing!

Although it sounds like Rosen's guess of these colors is not very reliable for the time being, how can there be a bear with seven colors of rainbows?

But it is undeniable that this is indeed a good way to break the game!

This is the legendary exhaustive method!

If Rosen could go through all the colors in the world one by one, he would definitely be able to answer this question correctly.

Of course, Rosen doesn't waste that much time.

So after the proper meaning, he finally got to the point.

"Brown, gray, black, white!"

The voice fell, and in the layers of water curtains, the slightly struggling and unwilling words finally lit up.

Good!

With the appearance of this character, a burst of cheers suddenly broke out at the scene, and even Peng Chen looked excited.

I have to say that all this is still assisted by the god of Cuiweilou.

It is precisely because of this last question that Cuiweilou showed an intention to deliberately suppress Lawson, which made the onlookers feel comfortable at this moment.

It's like seeing an indomitable hero finally slay the evil dragon.

But after a short revelry, everyone stopped celebrating.

They all set their eyes on the red list next to the ring.

Excited and nervous.

Of course, Peng Chen is an exception.

At this time, all he had left was a wry smile on his face.

If there are no accidents, he will soon become the cultivator who has been on the list for the shortest time since the establishment of the Thousand Machines List.

This is not something to be honored for.

It's almost a sure thing that Lawson is on the list.

The only suspense is that he can be ranked first.

But no matter how many Rosen ranks, he will definitely squeeze down Peng Chen, who is at the bottom.

Under the watchful eyes of all the people, the Qianji Literature List finally changed.

It's not the same as before.

It's not just a name that has been blurred by the ink, and then replaced by a new one on the list.

Instead, from beginning to end, all ten names have changed!

The name of the last Peng Chen disappeared.

The other nine moved down two inches and a few inches.

At the top of the list, a brand new name stands out.

None other than Rosen!

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