Final answer:
The ability to express maximum force in minimum time is known as power or instantaneous power, which is the rate at which work is done in the context of dynamics.
Step-by-step explanation:
The ability to express maximum force in minimum time is known as power, more specifically sometimes referred to as instantaneous power. Power is the rate at which work is done, with work being defined as the work done when a force acts on something that undergoes a displacement from one position to another. In the context of a sprinter, as the force from the sprinter's foot acts against the track, it causes a reaction force that propels her forward. This concept involves both dynamics in expressing force in terms of changing momentum and kinematics in terms of movement.