Introduction[]
About time I'm starting this.
Anywho, less talking, there exists an enemy in Fantastic Frontier which is essentially a knight in golden armor that stands at least 10x the player's height while wielding a giant greatsword almost as tall as its height. I will be calculating the kinetic energy of its greatsword by finding how quickly it lowers it to the ground upon swinging it downwards.
(Also, this calc used to be an upgrade, now it's a downgrade that has slightly better reasoning than the calc that placed them at 8-A via scaling to [hitscan lightning])
Pixel Scaling, Volume, and Mass[]
I already know the height of the knight is 50 studs. While stud measurements are a bit odd for this, the player is essentially the same height as a Robloxian with a different model. Basically, the player here is 5 studs tall.
The average height of an American male is 177 centimeters tall.
50 (stud height of the knight) / 5 (stud height of the player) = 10 times larger.
177 x 10 = 1770 centimeters tall
Well, now to pixel scale that height to the knight's sword.
I'm assuming here that the '50 studs tall' thing accounts for the helmet, so I scaled it to the top of it.
1770 (Height of the knight) / 198 (Height of the knight in pixels) = 8.93939394 centimeters per pixel
168.8 (Height of sword) * 8.93939394 = 1508.96969707 centimeters
18.6 (Length of sword) * 8.93939394 = 166.272727284 centimeters
Now, to find the width, I will scale its height from a different perspective:
(If you can't read the purple text, it says 170.4 pixels)
1508.96969707 / 170.4 = 8.85545597 cm per pixel
8.85545597 x 6.3 (Width of sword) = 55.7893726 centimeters
To calculate its volume, I will multiply these length values by each other and then multiply the total by 1/3, given that there would be many hollow spaces around the sword if I would be calculating it as a rectangular prism.
(55.7893726 x 166.272727284 x 1508.96969707) / 3 = 4665860.63333 cm^3
The density of gold is 19.32 grams/cm^3]
19.32 x 4665860.63333 = 90144427.4 / 1000 = 90144.4274 kilograms.
Class 50, this could possibly scale to every enemy that is physically comparable to or stronger than the Ancient Golden Knight.
Speed[]
Using this video here and putting it into FramebyFrame.
At around frame 306, the knight starts swinging their sword downwards and hits the ground at frame 318
318 - 306 = 12 frames
Since the video runs at 25 FPS (1 / 25 = 0.04 seconds per frame), I multiply this by the amount of seconds per frame.
0.04 x 12 = 0.48 seconds
I'm going to say that it traveled 17.7 meters (Its height, as a lowball) in that period of time, as it raises it above its head.
17.7 / 0.48 = 36.875 m/s,
Subsonic, this is fairly nice for a downgrade that affects the entire verse, it balances in well with how players can actually avoid crossbow bolts (Which move at an average of around 300 Feet per second).
Kinetic Energy[]
This part should be fairly basic, simply just plug the velocity from the previous section and the mass from the section before that into a kinetic energy formula.
0.5 x 90144.4274 x 36.875^2 = 61287646.8 joules, or 0.01464809913958 Tons of TNT
Small Building level
Bonus: Applying the material from other knights into the same formula[]
There exist two other knights that are weaker than the gold one (The iron one being comparable to the beginning-of-game player and the cobalt one being comparable to the mid-game player) which work identically to the gold knight in attack animations and the like. Since iron is less dense than gold and cobalt is denser than iron, I suppose that applying the density of iron (7.87 gram/cm^3) as well as the density of cobalt (8.86 grams/cm^3) to the volume of the sword calculated from the gold knight's sword.
Volume of the knight's sword is 4665860.63333 cm^3
Iron Knight[]
4665860.63333 x 7.87 = 36720323.1843 grams, or 36720.3231843 kilograms
0.5 x 36720.3231843 x 36.875^2 = 24965516.6025 joules, or 0.005966901673637667 Tons of TNT
Baseline Small Building level
Cobalt Knight[]
4665860.63333 x 8.86 = 41339525.2113 grams, or 41339.5252113 kilograms
0.5 x 41339.5252113 x 36.875^2 = 28106032.6681 joules, or 0.006717503027748566 Tons of TNT
Small Building level, albeit higher than the previous results.
So basically, these bonus calcs - while being downgrades - would increase the player to consistently Small Building level (Which increases throughout the game) with around titanium or gold equipment at the very least (given that it allows them to fight on par with the ancient iron knight), surprisingly enough. Bronze/iron/cobalt equipment should probably be around Wall level or so due to being able to kill creatures such as bears. Additionally, I do believe that these calcs are more consistent than the aforementioned meteor calculation due to the fact it is much more consistent (Three 9-A - in addition to another 9-A supporting feat if we take into account that lightning can range from 9-A to 8-C in attack potency, which the player can use - results as compared to about one or so 8-A result. In addition that, the subsonic speed pars well with the player being able to dodge crossbow bolts from other players)
Results[]
Weight of the Ancient Golden Knight's sword - 90144.4274 Kilograms, Class 50
Swinging speed of the Ancient Golden Knight's sword - 36.876 M/S, Subsonic
Kinetic energy of the Ancient Golden Knight's sword - 0.01464809913958 Tons of TNT, Small Building level
Bonus calcs[]
Kinetic energy of the iron knight's sword - 0.005966901673637667 Tons of TNT, Small Building level
Kinetic energy of the cobalt knight's sword - 0.006717503027748566 Tons of TNT, Small Building level