A submarine was situated 800 feet below sea level. If it ascends 250 feet, what is its new position?
1 Answer
See below
Explanation:
Let's take sea level as our horizon: if you are on the water surface, your height is
If it ascends
Note that this problem heavily depends on the coordinate system you adopt. In fact, I may have chosen an axes whose origin is set at the initial position of the submarine (which would have become the
The only things that won't change is that the new position will be