Archerfish are known for their ability to take down insect prey by precisely shooting water jets, but they can also leap from the surface of the water to capture prey directly. A 10-cm-long archerfish begins such a leap with its body vertical in the water, using its fins and undulating its body to propel itself sharply upward. Its acceleration steadily decreases as it leaves the water because less of its body and fewer of its fins are in contact with the water. The (Figure 1) is somewhat idealized data for the acceleration of an archerfish from the instant it begins a leap until the instant it leaves the water.

a) With what speed does the fish leave the water?

b) What height above the water does it reach?