Final answer:
The horizontal acceleration of an object launched from the ground is 0 m/s²
Step-by-step explanation:
The horizontal acceleration of an object launched from the ground is 0 m/s², Option A.
Since there is no horizontal acceleration, the initial and final horizontal velocities are the same, resulting in zero acceleration in the x direction.
This is because there are no external forces acting horizontally on the object, so its horizontal velocity remains constant throughout its trajectory.