Final answer:
The magnitude of the acceleration at point g is smaller than the initial acceleration.
Step-by-step explanation:
The question is asking whether the magnitude of the acceleration at point g is greater. In the provided information, there is a discussion mentioning the ratio of ac/g = (1.25 m/s²)/(9.80 m/s²) = 0.128. This means that the acceleration ac is 0.128 times the acceleration due to gravity, g.
Based on this information, we can conclude that the magnitude of the acceleration at point g, ac, is smaller in magnitude than the initial acceleration. Therefore, the correct answer is (C) It is positive and smaller in magnitude than the initial acceleration.