Final answer:
The object that starts at a position of 5 m and travels at a velocity of -9 m/s for 3 seconds ends up at a position of -22 m.
Step-by-step explanation:
An object that starts at a position of 5 m and travels for 3 seconds at a velocity of -9 m/s will move backwards from its starting position because the velocity is negative. The object's change in position can be calculated by multiplying the velocity by the time of travel: (-9 m/s) × (3 s) = -27 m. To find the final position, we add this change to the initial position: 5 m + (-27 m) = -22 m. Therefore, the object ends up at a position of -22 m.