|Sun Tzu said:
21. The clever combatant looks to the effect of combined energy, and does not
require too much from individuals. Hence his ability to pick out the right men
and utilize combined energy.
|Combined energy is
the effect of using multiple methods or skilled warriors such that
their potential is multiplied and the enemy is quickly overwhelmed.
Combining has a synergistic effect, where the result is greater than
the sum of the parts.
Success comes from understanding the power both of the army as a
whole and of talented individuals, and how these are best combined.
|22. When he utilizes combined energy, his fighting men become as it were like
unto rolling logs or stones. For it is the nature of a log or stone to remain
motionless on level ground, and to move when on a slope; if four-cornered, to
come to a standstill, but if round-shaped, to go rolling down.
|With the ability to
sustain forward motion, a group of soldiers or a whole army gains
momentum that is difficult to stop.
|23. Thus the energy developed by good fighting men is as the momentum of a
round stone rolled down a mountain thousands of feet in height. So much on the
subject of energy.
|Rolling down a
mountain uses the potential energy of height to convert to kinetic
energy of movement.
Momentum is equal to mass times velocity. A
smaller force can hence gain high momentum by acquiring high speed.