A person falling from an airplane traveling horizontally at 60 m/s will theoretically cover 180 meters in 3 seconds, as calculated using the formula d=vt. However, air resistance significantly impacts the actual distance traveled, as it opposes motion and can slow horizontal speed. Factors such as the individual's weight, body position, and shape also influence the degree of air resistance encountered. Consequently, the real horizontal distance may be less than 180 meters due to these variables. Understanding the effects of air resistance is crucial for accurate distance calculations in practical scenarios.