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This issue concerns the following Kinetic Energy calculations for Naruto:
The speed is not being measured directly here for either of the giant snakes in question. Instead it is being assumed that their strike is relative in speed to their giant size as it would be for an ordinary snake. Some values are cited such as ordinary snakes being able to reach a top speed of 3 m/s, accelerate at 160 m/s^2 and from that it is calculated that the time it takes a snake to accelerate to their top speed is 0.01875 seconds.
Using that timeframe, the acceleration of the giant snake is found as being 32898 m/s^2 in the case of the one that Naruto stopped. Manda's acceleration is found to be about 1121757 m/s^2. Both large figures that contribute to the high result of Lifting Strength required to stop them.
In the quoted section above, it says:
The core issue is that it isn't proven that the giant snakes in question can accelerate to their top speed in the same timeframe that an ordinary snake could.
The page cites this as something we have to confirm for them to be as fast as we assume them to be. If there's no confirmation, then the resulting accelerations are effectively arbitrary, and the force and Lifting Strength values derived from them lack a valid foundation.
Furthermore, I can think of no good reason why we should just assume the timeframe to be the same. The differences between an ordinary snake and a giant snake are numerous; their mass is different, their lengths are different, their speeds are different, etc... The only value that is being assumed to be constant here is the time it takes each of them to reach their top speed. If there is no reason for that, then the calcs should be removed.
- KN0 Naruto stops a giant snake: 7-C (17.92 Kilotons)
- KN0 Naruto Stops Orochimaru's Snake: Class T (1.32e+9 Kg)
- Tsunade Stops Manda's Charge: Class T (4.12e+14)
An alternative method to calculate Attack Potency from size is from Kinetic Energy. There one takes the mass of the character and uses its running speed to get Kinetic Energy via "Kinetic Energy = 0.5*Mass*(Running speed)^2". Here mass should be in kilogram and running speed in meter per second. The result is in joule.
The best practice is to measure the speed directly from the source material. Should that not be possible, but it is known that the character moves relative to its size as fast or faster than its normal-sized counterpart, upscaled speed can be used. To confirm that they are that fast, it must be clear that they, for instance, take steps within the same timeframe or less than a normal human would. If that is the case, then their speed should be x-times higher than that of their normal-sized counterpart, if they are x-times larger.
The speed is not being measured directly here for either of the giant snakes in question. Instead it is being assumed that their strike is relative in speed to their giant size as it would be for an ordinary snake. Some values are cited such as ordinary snakes being able to reach a top speed of 3 m/s, accelerate at 160 m/s^2 and from that it is calculated that the time it takes a snake to accelerate to their top speed is 0.01875 seconds.
Using that timeframe, the acceleration of the giant snake is found as being 32898 m/s^2 in the case of the one that Naruto stopped. Manda's acceleration is found to be about 1121757 m/s^2. Both large figures that contribute to the high result of Lifting Strength required to stop them.
In the quoted section above, it says:
To confirm that they are that fast, it must be clear that they, for instance, take steps within the same timeframe or less than a normal human would.
The core issue is that it isn't proven that the giant snakes in question can accelerate to their top speed in the same timeframe that an ordinary snake could.
The page cites this as something we have to confirm for them to be as fast as we assume them to be. If there's no confirmation, then the resulting accelerations are effectively arbitrary, and the force and Lifting Strength values derived from them lack a valid foundation.
Furthermore, I can think of no good reason why we should just assume the timeframe to be the same. The differences between an ordinary snake and a giant snake are numerous; their mass is different, their lengths are different, their speeds are different, etc... The only value that is being assumed to be constant here is the time it takes each of them to reach their top speed. If there is no reason for that, then the calcs should be removed.