How does one calc the weight of an object that has been made bigger or smaller?

[Arceus0x]

So i have a semi truck with a trailer (35000 pounds or ~15.875 tons)(13.5 feet high, 8.5 feet wide and 72 feet long). I have another truck that is notably smaller, around 76.229cm tall and 263.671cm long and around as wide as it is tall. Is there a way to calculate what its weight would be?

 

[Naito-desu]

Square Cube Formula:

(Weight of original object) * (Length of downsized or upsized object/length of original object)^3 = Weight of downsized/upsized object

 

[Arceus0x]

Square Cube Formula:

(Weight of original object) * (Length of downsized or upsized object/length of original object)^3 = Weight of downsized/upsized object

yeah this formula feels wack. I mean there ain't no way that a 2meter long and 1 meter tall semi truck would weigh 27 kilograms, my table weighs more than that.

 

[Naito-desu]

21 meters to 2.6 meters is a massive downsize, and square cube law dictates that when an object's surface area is squared, its weight is cubed, the inverse of this occurs so the smaller you make a surface its weight is inversely cubed. A semi truck at that size is relatively light for its size because it needs to be in order to transfer cargo and not collapse under its own weight.

 

[Arceus0x]

damn so its useless then huh

 

[Naito-desu]

Essentially, size an object up x10, its weight will go up x100, size an object down x10, its weight will go down x100

 

[ElajRuengies]

Essentially, size an object up x10, its weight will go up x100, size an object down x10, its weight will go down x100

No, size an object up linearly x10, it's weight goes up 1,000x and vice-versa.

Square Cube Formula:

(Weight of original object) * (Length of downsized or upsized object/length of original object)^3 = Weight of downsized/upsized object

It's cubed not squared