Final answer:
The force applied to accelerate a person with a mass of 75 kg to 3 m/s² is 225 N, as calculated using Newton's second law of motion (F = m × a). The correct option is 1.
Step-by-step explanation:
To determine the force applied to a person with a mass of 75 kg who is accelerated to 3 m/s², we need to use Newton's second law of motion, which states that the force applied on an object is equal to the mass of the object multiplied by its acceleration (F = m × a).
In this case, the mass (m) is 75 kg and the acceleration (a) is 3 m/s².
Therefore, the force applied is calculated as follows:
F = m × a = 75 kg × 3 m/s² = 225 N.
Hence, option 1 is the correct answer.