Final answer:
The boat's final speed after accelerating at 2 m/s^2 for 10 seconds, from an initial speed of 10 m/s, is 30 m/s.
Step-by-step explanation:
A boat was moving at 10 m/s and accelerated at 2 m/s2 for 10s. To find the boat's final speed, we can use the formula for uniform acceleration, which is v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time the object has been accelerating.
Using the given values: v = 10 m/s + (2 m/s2 * 10 s), we calculate the final velocity as v = 10 m/s + 20 m/s, which equals 30 m/s. Therefore, the boat's final speed is 30 m/s.