In this picture, force rape must be go other way. If both forces apply with 900 New tons, then system is balance. Means umbrella functions and rape cannot rape! Do mechanics correct!

If smart use umbrella friend, can block genitilia at angle
Then no need so much force protect from rape

Larto wrote:

In this picture, force rape must be go other way. If both forces apply with 900 New tons, then system is balance. Means umbrella functions and rape cannot rape! Do mechanics correct!

confusing

Larto wrote:

In this picture, force rape must be go other way. If both forces apply with 900 New tons, then system is balance. Means umbrella functions and rape cannot rape! Do mechanics correct!

The common missionary position of intercourse shall serve as an example to calculate the consumption of calories by a male during sex. First, we assume an average displacement per thrust of 12 centemeters. Due to physical constraints, it is often not possible to insert the entire male member into the female. 12 centemeters is thus a good working average. Due to changes in technique and rhythm, I will assume one .12 m coital thrust every half second.

So far, we have a displacement of 12 cm every half second. Now, we must find the force of the thrust to derive the work.

Let us start with the velocity of said coital thrust. Velocity is distance / time. If the distance is .12 meters, and time is .5 seconds, the velocity is .24 m/s.

Next, the acceleration is needed. Acceleration is velocity / time. Thus, .24 m/s divided by .5 seconds is .48 m/s2.

Force = mass x acceleration. Assuming an average, 73.5 Kilo man, the force in newtons would be 35.28. However, that is wrong, as the entire human body does not move during coitus. Assuming that the head, torso, and pelvic region move during sex, the total moving mass is much closer to 2/3rds of the total body mass. Thus, We must multiply 49 Kilos by the acceleration of .48 m/s2

Finally, calculating the total work is possible. Work is force x displacement. So, 23.52N x .12 m of displacement is 2.8224 Newton-meters (Nm). Since coital thrusting happens for about 20 minutes during the average sexual encounter, we take 300 seconds times 2.8224 Newtons and get 846.72 Nm.


So umbrellas are for fat people who don't want to burn calories!
Fsafety = Ffat
I don't think this umbrella defense makes anyone happy, neither the rapist nor the rapee

dNextGen wrote:

confusing

very

tl;dr

^although you deny power of umbrella protect
Must thank you because help me revise physics for test

iMercurial wrote:

tl;dr

Time for you to make a thread in OT

laport wrote:

So umbrellas are for fat people who don't want to burn calories!
Fsafety = Ffat
I don't think this umbrella defense makes anyone happy, neither the rapist nor the rapee

Is rapee really a word?..

Yuugoh wrote:

owo oao

Are you really a weeaboo?

I believe you left out the work required to pull out after a coital thrust, correct me I I'm wrong

-A t H e N a- wrote:

I believe you left out the work required to pull out after a coital thrust, correct me I I'm wrong

Correct, I left it out, because it's not any trouble or work at all.

Newton times Meters equals Joules. Laport.

Apex wrote:

Newton times Meters equals Joules. Laport.

laport wrote:

your umbrella has no pointy point at the top, therefor it will require far more joules of energy to become secure from Frape

I know, but let's keep it simple

edit: when dealing with calculations about thrust, like we do, we use newtonmeter (Nm) and not joules.

can umbrella save me from team plotter?

friendok wrote:

can umbrella save me from team plotter?

Ika's Umbrella probably can

8find3r wrote:

friendok wrote:

can umbrella save me from team plotter?

IKEA's Umbrella probably can

Fix'd.

ok

Umbrella lvl: Asian

why do you exist

if I tell you that, i'll have to kill you! xD

i declare myself an official umbrella guinipig

Mickey Mouse

Copter-kun wrote:

Good use of umbrella!

unbreakable umbrella ftw

Didn't read

Umbrella in the Middle Ages are used as a wespon of self-defence. When a wife caught his husband in "treason", which can be a single verbal movement of endorsing Napoleon, the wife can beat the husband to death using the umbrella.

Assuming your force exerted on the umbrella is 100N(Which is enough power to lift a 10kg weight):

When lunging with the umbrella, the contact area of the umbrella is only like about 10cm2 and the pressure exerted with be 1000 Pascals, which is enough to leave a bruise. Especially when umbrellas at that time are reinforced for self-defence.

When downward-slashing with the umbrella, it will be 10000 Pascals(because the contact area of the protruding iron frames of the umbrella are ridiculously small) which is enough to leave a fleshwound when wearing Middle Age clothing(I think).

But now, umbrellas are just shademakers and rain-repellers. You can modify your umbrella into a murdering weapon if you want, but Osu! and I don't take any responsibility of mansluaghter.

napoleon lived in the eighteenth century which is well past the middle ages. Your numbers are quatsch, downward slashes do not exert pressure but force. 10000 Pa is less pressure than the atmosphere around you. You wouldn't be able to move air.

Why the fuck do you even try to shoot this thread down.

those not umbrella but parasol

They umbrella uncle which designed specially for martial arts masters in table cloths to use as parachute.

Wojjan wrote:

napoleon lived in the eighteenth century which is well past the middle ages. Your numbers are quatsch, downward slashes do not exert pressure but force. 10000 Pa is less pressure than the atmosphere around you. You wouldn't be able to move air.

Why the fuck do you even try to shoot this thread down.

I wonder if sanity even exists now anymore.

ey i da math eXpert an i can tell U 2 plus 2 is 3 ! You're countculutor is wrong ?

can I use umbrella to protect my virginity?

Yes mr weird shaped yellow mass can protect virginity with umbrella, go previous pages

Apex wrote:

I wonder if sanity even exists now anymore.
casiotriestodomath.jpg

:c

Roley wrote:

Apex wrote:

I wonder if sanity even exists now anymore.
casiotriestodomath.jpg

SPOILER

:c

Except photoshopping typeset fonts is much easier than photoshopping a picture taken of a calculator.

The umbrella situation with My Neighbors the Yamadas lololol.

That calculator wasn't photoshopped. They did something to make it output 5 and pressed a number (clearing whatever equation they had on their previously) and put 2+2

it that makes sense

that's how it works on that calculator

Sync has utilized umbrella to protect from lies.

He did? The umbrella must be invisible then...