me and the weird fraternity

In mid-air, he had no way of determining how fast he was falling. After all, he was not a paratrooper who often parachuted.

Therefore, he can only use two bullets with different densities and volumes as reference objects for calculation.

"Assuming that the relative velocity v in dt is constant, the mass effect on the surface of the object is equal to the air mass, so the air mass acting in dt is =ρSvdt, Ek=12v^2=12ρSv^3dt, F=Eks=Ekvdt=12ρSv^2, Considering that the effective coefficient of action is C, then F=(12)CρSV^2..."

Lin Fan shook his head, "No, there's no need to do this, it's complicated by me, I don't need to consider the kinetic energy of the falling object now, I only need to consider the falling speed..."

Just calculating the speed of descent became much simpler, and Lin Fan came to a conclusion in just a few seconds.

According to his calculations, the final free-fall velocity of pistol bullets will be fixed at 45s, while the free-fall velocity of rifle bullets will be fixed at 75s.

The final falling speed of the two bullets is exactly one faster than him and the other slower than him. As long as this point is confirmed, then the air resistance problem can be determined to be consistent with the air resistance on the earth.

If the experiment is successful, it means that using the teleportation ability to pull the bald man to a high altitude and fall will not cause fatal damage to him!

"My weight is 64kg, assuming that gravity is g, resistance is f=v2, a=gf already exists, that is, (dvdt)=g-v2, separate variables, calculate separately, assuming v=50s, g=9.8s^2 , into the formula, we get ≈79, t≈5.6s.”

"About 5.6 seconds to reach maximum descent speed..."

Lin Fan didn't count the time for the bullet to reach the maximum falling speed, mainly because it was too cumbersome and the time was limited.

It is subject to his own landing to the maximum speed.

"1 seconds!"

"2 seconds!"

"..."

"5.6 seconds!"

Counting the time silently, Lin Fan's attention was always on the two bullets.

The result was the same as what he had imagined. The pistol bullet fell at a lower speed than him and landed above his body at this moment. The rifle bullet fell at a higher speed than him and fell to a position more than 100 meters lower than him at this moment.

"The distance from the rifle bullet is about 140 meters, which is close to the calculation result. After the experiment is over, the air resistance coefficient and gravity of the game island are almost the same as those of the earth!"

After reaching a conclusion, Lin Fan did not continue to land, but activated teleportation, and returned to the building where Hermione was hiding.

[What did Lin Fan just do? ! ]

[Is he trying to commit suicide? ! ]

[Suddenly a person appeared in mid-air and dropped two more bullets. He wanted to know if a bullet dropped from a high altitude could kill a person? ! ]

Lin Fan's calculations were basically silent calculations in his head, and he didn't read them out. Most netizens didn't understand them.

Only physics professors who are keen on numbers can understand that taking out banknotes is a calculation.

[He's doing some sort of free fall experiment! ]

[I just did calculus, he calculated the maximum fall for a human body, pistol bullets, rifle bullets in free fall, and the time it takes for maximum fall velocity...]

[Uh, can the upstairs be more simple? ! ]

[Oh, Lin Fan should be testing whether the air resistance and gravity in the game island are consistent with the earth! ]

[Fuck, is it so strong?What was his test result? ! ]

[The result is that the air resistance and gravity in the game island are almost the same as the earth! ]

……

Experimental Middle School.

In the second and third class of high school, all the members of the class except Lin Fan gathered together to watch Lin Fan's live broadcast.

After seeing this scene, Teacher Wang was stunned, "You still teach these things in physics class?!"

Under the stage, all the students looked confused, "No, the physics class is about v = what, t = what, g = 9.8, all calculations are performed after excluding air resistance..."

Teacher Wang turned to look at the physics teacher, "You taught Lin Fan these things?!"

The physics teacher was also very innocent, "No, he's only a sophomore in high school, where can I teach this stuff..."

However, he pondered for two seconds, and recalled: "I brought the advanced mathematics textbooks related to calculus to the classroom before..."

"What are you doing with this thing?!" Teacher Wang had a headache on his face. The thing he hated seeing the most in college was brought by someone in high school.

"I graduated from Nanqing Normal University with a bachelor's degree, but in private, I am still taking the postgraduate entrance examination and studying for a master's degree at my alma mater, so I brought self-study..."

The physics teacher was shocked, "Could it be that Lin Fan learned it after flipping it a few times at random?!"

Hearing this, Lao Wang's mouth twitched.

"Damn, this is too pretentious!"

Chapter 169 Summoning Doll

"The ability to travel through the mirror cannot be used, and the ability to teleport cannot be used..."

"Do you want to summon the doll?!"

At this point, Lin Fan actually had no choice, other than summoning the doll, the only option was to fight poison.

The problem is that there is no medicine for PlayerUnknown's Battlegrounds in the game island, and the only thing that can be used to fight poison may be physical fitness or the last breath.

However, he suspected that if they really had to fight drugs in the end, both of them might die, and the biggest winner would be Yuyudao.

Lin Fan thought for a while, and then summoned the doll when only the bald man was left. He didn't want to mess with some messy ghosts.

In fact, in Lin Fan's heart, there was a faint worry.

Baby, after all, it's Weird. In reality, many people died on Weiwei's body. If he could control Weird, he might be secretly hated.

Especially since he is so famous now, and there are too many people who know about it, maybe some perverts with twisted minds are eyeing him.

"Use your summoning ability with caution!"

Lin Fan sighed, he couldn't help him now, he would die if he didn't summon him.

"Remaining players: 6 players."

The bald man still spared no effort in chasing and killing other players, but it saved Lin Fan a lot of work.

I thought it would take a while, but who knows, when the remaining players jumped to 6 players, they continued to jump down until they reached 3 players before finally stopping.

Lin Fan suddenly realized that this was the last team that was wiped out by the bald men's team!