Answer:7.35 meters
Step-by-step explanation:
Assuming that air resistance is negligible, we can use the kinematic equation:
h = (v^2)/(2g)
where h is the maximum height, v is the initial velocity, and g is the acceleration due to gravity (9.8 m/s^2).
Substituting the given values:
h = (12^2)/(2 × 9.8)
h = 7.35 meters
Therefore, the maximum height of the water balloon is approximately 7.35 meters.