Maybe it was simpler to say, when you have more power than what all the drag (rolling and aero) and the internal friction (drive train) requires. That extra power goes to acceleration based on the formula F=MA. So you accelerate gaining more drag until things balance out and again there is no-extra power left for acceleration.
Was that better? Hmm maybe. It didn't specify anything about what aerodynamic or rolling drag was.
Was that better? Hmm maybe. It didn't specify anything about what aerodynamic or rolling drag was.