Final answer:
The acceleration of a 25-kg object when a force of 75 N is applied is 3 m/s², calculated using the formula a = F / m.
Step-by-step explanation:
The force (F) required to accelerate an object is given by Newton's second law of motion, which states that force equals mass (m) times acceleration (a). In mathematical terms, F = ma. To find the acceleration of a 25-kg object when a force of 75 N is applied, we use the formula a = F / m. Plugging in the values, we get a = 75 N / 25 kg, which gives us an acceleration of 3 m/s².
The correct answer to the student's question is 3 m/s², option 3.