To find the change in velocity, multiply acceleration by time: 5 m/s² multiplied by 5 s gives a result of 25 m/s, making option c) the correct answer.
When you multiply 5 meters per second squared (m/s²) by 5 seconds (s), you are calculating a change in velocity, since acceleration (given in meters per second squared) multiplied by time (seconds) gives a velocity. Here's the calculation:
5 m/s² × 5 s = 25 m/s
Therefore, the correct answer with the correct units is: c) 25 meters per second (25 m/s).