A load beyond the per-step energy limit fails the exact inequality. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
An overload asks for too much energy
A load of 8 newtons over 2 metres would require 16 joules.
8⋅2=16
The packet cannot pay that load
Only 12 joules are available per step, so the accepted bit is 0.