Answer:
9.81 or 10 m/s^2
Step-by-step explanation:
Any object under free-fall experiences an acceleration of 9.81 m/s^2 (assuming downward is the positive direction), but for simplicity we will round it to 10 m/s^2.
Knowing this, we can also find the mass by dividing 25 by 10 (m = Fg/g) which is 2.5kg.