When a catapult is cocked back, is the energy stored primarily in stretching of the rope, or bending of the wooden frame?

Trending 7 months ago

Referring to an onager aliases catapult for illustration this:


I searched it but couldnt find a bully answer. I judge that theoretically it could activity either way. Likely its astatine slightest a small spot of both, but wherever is nan power stored predominantly?