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HaulingAss

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This is akin to hitting a nail with a hammer. Much higher force than just pushing on the nail with the hammer, but how much higher?

If Cybertruck dropped 1 meter, that's a time of 0.45 seconds and final velocity of 4.41 m/s.
Acceleration required to stop the vehicle depends on the time the deceleration happens. If the back half is 3,500 pounds, then you hit 100,000 pounds if it takes 28.6gs. Knock one off for Earth and you get 27.6gs
27.6*9.8 = 270.48 m/s²
4.41 m/s / 270 m/s² = 0.016 s or 16 milliseconds
Assuming constant deceleration (unlikely, but easier) distance traveled = 0.016*4.41 -0.5*270*(0.016)² = 0.036m = 3.6cm = 1.4 inches

So, if the body and block flex less than 1.4 inches on impact (or drop is higher, or deceleration is nonlinear), then it would reach 100,000 pounds.
Exactly. And if the total "flex" is only .7 inch, then you've hit 200,000 lbs, and so on.
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cbertgo

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From The Bearded Tesla:

The Tesla Cybertruck is unlike any truck before it, and although some are attracted to the truck for that very reason, the way the truck is built is also very different from traditional trucks. When it comes to the structure of the Cybertruck, no compromises can be made given the high levels of claimed capabilities.​
YouTuber WhistlinDiesel just recently posted his long awaited video where he utterly destroys the Cybertruck. In this video, he submits the Cybertruck to a gauntlet of torture that would destroy any truck, and in the end, the truck was still functioning somehow.​
Comparing the Cybertruck to a "real truck" was the purpose of the video in question, and in that torture testing, a critical failure occurred in the structure of the Cybertruck. While pulling a stuck F-150, the rear end of the truck completely snapped off.​
At first it was hard to understand how this could possibly happen. At closer inspection, we can clearly see the truck failed at the casting, which is the frame of the truck. Essentially, the casting snapped in half, releasing the trailer hitch with it. Left with a snapped rear casting and a tow hitch that has completely let lose from the truck, it raises a lot of questions about the strength of the truck for towing.​
It is extremely important to understand how a casting works, how the Cybertruck is engineered, and the circumstances leading up to the ultimate failure in this case. The Cybertruck is undoubtedly engineered to be extremely strong, and even claims the designation of bullet proof. But all vehicles, no matter how tough, do have failure points, and in this case, the abuse the Cybertruck was submitted to ultimately caused a catastrophic failure.​
During a segment of the video, the Cybertruck is driven across a row of 4 foot culverts. At the end of the row, the Cybertruck gets stuck and is pulled out with the F-150, and when it clears the last Culvert, it is dropped with force on the rear of the truck and the Culvert and then again on a concrete spike on the ground.​
The Cybertruck is rated to tow 11,000 lbs and a tongue weight of 1,110 lbs. In this case, a more than 6k lb truck was dropped right on top of the trailer hitch, and rear structure of the truck from a height. The vertical forces that the rear of the truck were submitted to were well beyond that of any truck on the market today is rated to handle. This ultimately led to the failure we later see when the F-150 is attached to the rear of the Cybertruck and pulled hard.​
Having towed nearly 10k lbs across the country, I can say from experience and with confidence that the Cybertruck is more than capable of towing massive loads. It is also safe in doing so and to submit the truck to destructive testing does not represent the trucks overall structural strength.​
Thanks for detailing the reality of the “torture” test. a bit unrealistic that. An owner would purposely damage 120K vehicle.
 

Macgyverfever

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Well said. This Whistlin’ D(bag) is a YouTube weenie that’ll do whatever for clicks. I wish that the Cybertruck community would stop promoting his videos. ?
You had me at weenie
 

Marc Montgomery

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Casting did not "snap in half", the back two rails broke where the hitch/bumper assembly attach.

the whole casting assembly:

1722895761482-vl.png


It's by design that they break off cleaning at those sections.

They have talked about the casting designed to break off in sections from the main for energy dissipation and to protect the larger casting:

Thank you. Glad to see another engineer understand what he did to the truck.
 

Marc Montgomery

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From The Bearded Tesla:

The Tesla Cybertruck is unlike any truck before it, and although some are attracted to the truck for that very reason, the way the truck is built is also very different from traditional trucks. When it comes to the structure of the Cybertruck, no compromises can be made given the high levels of claimed capabilities.​
YouTuber WhistlinDiesel just recently posted his long awaited video where he utterly destroys the Cybertruck. In this video, he submits the Cybertruck to a gauntlet of torture that would destroy any truck, and in the end, the truck was still functioning somehow.​
Comparing the Cybertruck to a "real truck" was the purpose of the video in question, and in that torture testing, a critical failure occurred in the structure of the Cybertruck. While pulling a stuck F-150, the rear end of the truck completely snapped off.​
At first it was hard to understand how this could possibly happen. At closer inspection, we can clearly see the truck failed at the casting, which is the frame of the truck. Essentially, the casting snapped in half, releasing the trailer hitch with it. Left with a snapped rear casting and a tow hitch that has completely let lose from the truck, it raises a lot of questions about the strength of the truck for towing.​
It is extremely important to understand how a casting works, how the Cybertruck is engineered, and the circumstances leading up to the ultimate failure in this case. The Cybertruck is undoubtedly engineered to be extremely strong, and even claims the designation of bullet proof. But all vehicles, no matter how tough, do have failure points, and in this case, the abuse the Cybertruck was submitted to ultimately caused a catastrophic failure.​
During a segment of the video, the Cybertruck is driven across a row of 4 foot culverts. At the end of the row, the Cybertruck gets stuck and is pulled out with the F-150, and when it clears the last Culvert, it is dropped with force on the rear of the truck and the Culvert and then again on a concrete spike on the ground.​
The Cybertruck is rated to tow 11,000 lbs and a tongue weight of 1,110 lbs. In this case, a more than 6k lb truck was dropped right on top of the trailer hitch, and rear structure of the truck from a height. The vertical forces that the rear of the truck were submitted to were well beyond that of any truck on the market today is rated to handle. This ultimately led to the failure we later see when the F-150 is attached to the rear of the Cybertruck and pulled hard.​
Having towed nearly 10k lbs across the country, I can say from experience and with confidence that the Cybertruck is more than capable of towing massive loads. It is also safe in doing so and to submit the truck to destructive testing does not represent the trucks overall structural strength.​
Thank you. Glad to see another engineer understand what he did to the truck.
 


Ray in montana

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Dunno why idiots like this get a highly coveted vehicle. Get him a vasectomy and improve the human species.
WD bag is an entertainer for guy's that own diesel trucks and the way to get clicks right now is to post rubbish like his. He is clown with mostly clown followers that hate CT's. Nothing is serious about him. I also own a 85 diesel chev truck but i love my CT.
 

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Math fun....

TLDR or ITDTUTM: 17,912 pounds of force were applied to the hitch.

Notes:
1. 2,720kg = 6,000 pounds
2. 4 ft = 1.2192 meters
3. Acceleration due to gravity = 9.807 m/s



Energy at impact: 1/2 * mass * Velocity ^2 = .5 * 1,360 * 9.8 * 1.2192 = 8,124.8 Kilograms

The Cybertruck imparted 17,912 pounds of force (if you could do such a thing) to the ledge next to the 4' culvert.


Since kilogram is a measurement of force and weight is a measurement of mass that is being acted on by gravity, you can say the Cybertruck imparted 32,532 Kilograms of force to the concrete ledge.

BONUS FACT:
6 pounds on earth is 1 pound on the moon but, 6 kilograms on earth is 6 kilograms on the moon. Blame gravity

EDIT: Math is hard. Thanks, mongo.
 
Last edited:

HaulingAss

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WD bag is an entertainer for guy's that own diesel trucks and the way to get clicks right now is to post rubbish like his. He is clown with mostly clown followers that hate CT's. Nothing is serious about him. I also own a 85 diesel chev truck but i love my CT.
True, but I could tell he really likes the Cybertruck. Unfortunately, his Whistlin Diesel channel is too valuable from an income standpoint, he has to protect his brand image, as much as he might like to tell the truth or own one for himself.

We are superior to him because we can own the Cybertruck and remain true to ourselves while, for him, that would just expose the dishonest fraudster that he is. He had no choice but to destroy it. And it probably will make him over $500,000.
 

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Math fun....

TLDR or ITDTUTM: 71,721 pounds of force were applied to the hitch.

Notes:
1. 2,720kg = 6,000 pounds
2. velocity due to gravity = sqrt( 2 * g * height ) which is 4.89 m/s
3. 4 ft = 1.2192 meters

Energy at impact: 1/2 * mass * Velocity ^2 = .5 * 2,720 * 9.8 * 1.2192 = 71,721.7 pounds

The Cybertruck imparted 71,721 pounds of force (if you could do such a thing) to the ledge next to the 4' culvert.


Since kilogram is a measurement of force and weight is a measurement of mass that is being acted on by gravity, you can say the Cybertruck imparted 32,532 Kilograms of force to the concrete ledge.

BONUS FACT:
6 pounds on earth is 1 pound on the moon but, 6 kilograms on earth is 6 kilograms on the moon. Blame gravity
Pounds is not a unit of energy and you dropped the 2 in the v expansion (blue terms). Also, the full mass was not applied to the hitch.
Calculating the impact force requires an assumption of the impact duration. For example, if you decelerated it over the same period you accelerated it then it would only see 2gs or double the weight.
 

TyPope

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Pounds is not a unit of energy and you dropped the 2 in the v expansion (blue terms). Also, the full mass was not applied to the hitch.
Calculating the impact force requires an assumption of the impact duration. For example, if you decelerated it over the same period you accelerated it then it would only see 2gs or double the weight.
You are correct, sir. I also assumed that the concrete had no movement. I used
Pounds is not a unit of energy and you dropped the 2 in the v expansion (blue terms). Also, the full mass was not applied to the hitch.
Calculating the impact force requires an assumption of the impact duration. For example, if you decelerated it over the same period you accelerated it then it would only see 2gs or double the weight.
Thanks! Fixed it... I think.
 


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You are correct, sir. I also assumed that the concrete had no movement. I used

Thanks! Fixed it... I think.
If concrete doesn't move (nor frame), it's an instantaneous event requiring infinite force (acceleration) to stop the mass.

Notes:
1. 2,720kg = 6,000 pounds
2. 4 ft = 1.2192 meters
3. Acceleration due to gravity = 9.807 m/s
Velocity = sqrt(2*9.8*1.2192) = 4.9m/s

Energy at impact: 1/2 * mass * Velocity ^2 = .5 * 1,360 * (2 * 9.8 * 1.2192) = 16,250 kJoules = 11,944 ft*lbs

To find stopping force, pick a displacement and divide that into 11,944 ft*pound
Or pick a time, divide that into 4.9m/s to get an acceleration, divide that by gravity, add 1 and multiply the mass by that value.
 

TyPope

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If concrete doesn't move (nor frame), it's an instantaneous event requiring infinite force (acceleration) to stop the mass.

Notes:
1. 2,720kg = 6,000 pounds
2. 4 ft = 1.2192 meters
3. Acceleration due to gravity = 9.807 m/s
Velocity = sqrt(2*9.8*1.2192) = 4.9m/s

Energy at impact: 1/2 * mass * Velocity ^2 = .5 * 1,360 * (2 * 9.8 * 1.2192) = 16,250 kJoules = 11,944 ft*lbs

To find stopping force, pick a displacement and divide that into 11,944 ft*pound
Or pick a time, divide that into 4.9m/s to get an acceleration, divide that by gravity, add 1 and multiply the mass by that value.
Still, more force than expected by the lay person...
 

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Still, more force than expected by the lay person...
Well, it's why hammers work, which was a good point made by @mongo made earlier: That momentum is being used as a multiplier to drive the nail, while you could literally stand on a nail and not drive it in.

(There's other things like brittleness but the point stands.)

-Crissa
 

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I agree. But @HaulingAss thinks its more than 100x. He must be an engineer. On the internet.
You seem to not have a fundamental grasp of physics if you think the force exerted on the hitch was merely the weight of the vehicle when it slammed down from several feet high lol
 

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You seem to not have a fundamental grasp of physics if you think the force exerted on the hitch was merely the weight of the vehicle when it slammed down from several feet high lol
F = ma. g = 32 ft/s^2. How high up was he again? LOL
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