The acceleration of a free-falling body is about 9.8 m/s².
Tips
usage
落体 is a physics term — 落 ('fall') + 体 ('body / object'). The textbook phrase you'll see most is 自由落体 (zìyóu luòtǐ), 'free-falling body', referring to motion under gravity alone. Outside physics class, this word is rare.
