User blog:Joshless/Mao Mao's boulder hold

With this in mind, it's possible to calculate the level of strength Mao Mao shows in this scene.

To start, we'll need this model sheet. As can be seen here, Mao Mao's waist is ~1 foot wide, depending on where exactly you start measuring from.

With that as a reference point, it's then possible to see that the boulder is ~9 feet wide (give or take a few inches, again depending on where you measure from).

Since volume is just (4/3)(pi)(r3), you can substitute r for 4.5 and see that this boulder has a volume of 400 cubic feet, rounding.

Our last figure will be an assumption, that being that the boulder is sandstone. Sandstone possesses a density between 1.61-2.76 g/cm3, and using those figures we can come to the final weight of the boulder through multiplication.

Using 1.61 as our figure, the final weight comes out to ~40,000 lbs. Using 2.76 as our figure, the weight is ~70,000 lbs. Again, rounding to a single digit. Converting this to metric, this would be 18-30 tonnes.

If we want, we can also find the energy involved with the impact that severed Mao Mao's tail. As the boulder seems to have fallen around 2 feet, it would've had a velocity of 3.4 m/s at impact (based on the formula √(2*h/g)). With the weights given, that would come out to an impact between 100,000-175,000 joules, roughly equivalent to a car crashing into a wall at 30-40 mph.

In theory, it may also be possible to calculate the tensile strength of Mao Mao's muscle based on this scene, assuming that the tail was pulled off when he attempted to move out from under the boulder, but that seems a tad far in the face of other possibilities (such as the boulder severing it on impact, or Mao Mao severing the tail himself).