Ripping body parts

[AngeronTheSkyHighAnger]

As the title suggest this thread questions how much kinetic energy and strength does ripping certain body parts take but with a twist. That twist is that it isn't just simply ripping the head off or the arm but alongside their spines or other body parts with them

Pic related, how much energy and strength does it take to rip out the arm and bits of the spine for example?

Or taking out the head of human alongside the spine like the predators

 

[SpookyShadow]

Asking real questions here