Question

question in the 1960’s nasa designed a rocket (the sea dragon) to be launched from under water. the rocket was never built, but let’s imagine it was. at some point as the rocket rises, it hits sea level (elevation: 0 meters). that’s when we start our stopwatch. let’s assume that in the first seconds the rocket’s elevation is changing at a rate of 30 m/s. the rate is because the rocket is

Explanation:

Step1: Analyze rate meaning

The rate of change of elevation of 30 m/s is positive because the rocket is moving upwards. An upward - motion increases the elevation, so the rate of change of elevation (which is velocity in the vertical direction here) is positive.

Answer:

positive; moving upwards