I have an LG, if that helps.
I was watching it during the spin cycle, and that drum really moves! How many g does the laundry experience?
You need to know the circumference or radius (if you know one, you’ll know the other) and the speed at which it spins. I assume you mean at the outer rim of the drum.
Note that force require a mass and G (uppercase is correct, lowercase is not) is an acceleration equal to 9.81 m*s-3 or 32.2 ft*s-3.
Once you gather the data per @Montys advice here’s a handy calculator with lots of options for units
Although sadly it does not offer G units as a choice for acceleration so you’ll have to do that division yourself.
Based on my own W/Ds, I think finding documentation for the spin RPM is going to be difficult. you might have to figure out a way to label something inside the drum and count it yourself vs. a stopwatch.
Seems that 1200 rpm is pretty standard. I measured my washer drum at a 0.25 m radius. That’s actually pretty nuts: it comes to about 400 gees!
A Google search says US front load washers spin at 900-1200 RPM, and adds that European washers spin faster. Further down in my search results I saw a page from the Netherlands talking about washers spinning at a whopping 1600 RPM. Wow. Assuming the same drum radius as yours, that’s 700G.
Having had both Euro- and US/Asian washers made for the US market.
On average the Euro- products have smaller drum radii than the US or Asian-for-US products. So just multiplying an Asian statistic by the higher Euro- RPM is probably an exaggeration.
But the underlying point remains. Modern front-load washers can produce majorly fatal G forces for anything unlucky enough to get caught in there. It’s not a toy kiddies.
I was thinking about this recently after replacing my drum and pump belt. It seems there could be a lot of trade-offs between spin out speed/time vs drying time.
They tend to feature large suspended masses inside the cabinet to damp out vibrations from eccentric loads during the spin cycle. An acquaintance had such a washer, and he told me that one of these weights came loose during the spin cycle and somehow impacted or got caught up on the rotating drum, resulting in a violent shattering of the weight and ejection of concrete fragments. Or at least that’s how he told the story. It seems to me that a failure mode like that would be something that designers seek to avoid, for example by having the weights positioned below the drum instead of above.
I feel like there’s some science I can do in my washer. What, exactly, I don’t know. A gas centrifuge for isotope separation is probably not in the cards. But there must be something fun I can do.
At the nihilistic range, you can see how far it will wander across the backyard when equipped with a long extension cord and a cinderblock. A spectacular enough journey might even earn you a buck or two on YouTube.
Other than that I suppose you could fractionate the results of various homemade phlebotomy kits. Here Kitty, Kitty, Kitty.
Perhaps try to make a stratified multi-liqueur cocktail. See here:
Although I suspect that effort will be defeated by vibration.
Given the non-success of centrifugal Punkin’ Chunkin’ machines at the annual chunk-fest this might not be the ideal use, but perhaps you could repurpose the mechanism as a centrifugal catapult for orange- or grapefruit-sized missiles once enough of the outer casing is removed and suitable sling(s) attached to the drum.
I had a washer that failed during the spin cycle. It gave plenty of warning as the bearings had been getting louder for weeks. There were two parts to the balancing weights. It had 4 large formed concrete weights bolted evenly around the front that did not rotate. I saved them as they are cool looking.
The second part was a hollow tube like a Hula Hoop partially filled with 3/4" steel balls. They move around to help balance the load. On my washer this plastic tube must have hit something due to the loose bearings and it shattered and ejected the balls. ALL HELL BROKE LOOSE. The machine has hopping across the floor while making terrifying banging noises.Somehow I managed to flip the breaker off even though it was on the wall near the washer,
You’d think that nowadays they’d have some sort of G sensor, which could be as crude as a spring-loaded weighted microswitch that would interrupt power to the drive & engage the brake as soon as the machine went seriously apeshit.
For consumer safety and collateral damage limitations at least. I’d bet not too many washers themselves survive a severe out-of-balance excursion. But I could also see somebody getting hurt & suing. Or suing after the runaway washer proceeds to destroy a fresh thousand dollars of custom cabinetry.
Cheaper to just include an accelerometer chip on the circuit board. They cost about 50 cents in bulk these days. No fiddly and unreliable mechanical bits to install. Could also be used to sense uneven loads. Come to think of it, I’ll bet a lot of modern washers already do this.
Agree completely that’d be the modern way to address the problem.
But evidently @mixdenny’s machine did not have any sort of wildly out of control cut-off feature at all.
As well, there are lots of entertaining YouTubes of washers or dryers self-destructing with a brick or cinderblock inside. If there was an accelerometer chip on the main board, I’d bet there is no simple way to disable that input to the machine’s control program. And yet those sensors are being disabled to create the vids. Hence my suggestion that on at least some machines the sensor is something low-tech that can easily be defeated with a jumper or by disconnection.
It may also be that the accelerometer chip approach is fairly recent, say 2020+, and all the W/Ds being centrifugally destroyed are older models. Be a shame if that particular rednecky form of entertainment was eliminated in favor of the nanny state. Thanks Biden! 
Also washing machines making some great beats.
Washing machines have been purely electromechanical until surprisingly recently. So yeah, it’s no surprise that most older ones wouldn’t have even a circuit board to mount the accelerometer to. But the latest ones have WiFi and shit. Wouldn’t surprise me if they’re at the point of sending a notification to your phone if somehow all your jeans clumped up on one side of the machine.
I have a European washer that spins at 1600 rpm with a drum size of 15" (381mm). Not sure what that works out to in Gs. It is fun to listen to as it goes. You can really hear it whirring (not loud but the whine is noticeable when close).
545 gees. Not bad!
My LG does this.
So that’s what the Russians want with all those washing machines!
our machine is 1600 rpm but is pretty much silent while it does it, it also has sensors to check for any imbalance and will stop and tell you.