Final answer:
The force generated from a 40 kg object accelerating at 4 m/s^2 is calculated by multiplying mass by acceleration, yielding a force of 160 N.
Step-by-step explanation:
The force generated by an object can be calculated using Newton's second law of motion, which states that force (F) is the product of an object's mass (m) and its acceleration (a). Mathematically, this is expressed as F = m × a. To find the force generated from a 40 kg object accelerating at 4 m/s², we multiply the mass by the acceleration: F = 40 kg × 4 m/s².
The force generated by an object is given by the formula force = mass x acceleration. In this case, the mass of the object is 40 kg and the acceleration is 4 m/s². Substituting these values into the formula, we get:
force = 40 kg x 4 m/s² = 160 N
Therefore, the correct answer is 160 N (option b).