Hello everyone

Daniel Pink, who is a professional motivator/writer, likes using the statement "Regaining momentum takes three times as much energy as sustaining momentum", often to inspire (possibly apathetic) employees.

I would like to know whether this is a general result, or only applicable to a specific scenario? And, also, how this can be proven?

I am assuming that the regaining/sustaining of momentum must be compared over a set time/or distance. And that there must be a drag force or resistance of some sort, as well as a thrust or forward force.

I have tried to play around with the equations for energy/momentum/force:

E = p^2 / 2m

E = F . d

But, unfortunately, i seem to be going around in circles.

Any help or thoughts would be much appreciated!