Question: what is the acceleration of an object after 2 seconds?
Answer: Near the surface of the Earth, the acceleration due to gravity g = 9.807 m/s2 (meters per second squared; which might be thought of as "meters per second, per second", or 32.18 ft/s2 as "feet per second per second") approximately. A coherent set of units for g, d, t and v is essential.