the small submarine is -1,320 feet in relation to sea level. the submarine needs to be 180 feet below sea level in 60 minutes. how far must the submarine travel?
The first submarine needs to travel at 19 feet per minute to rise to –180 feet. The second submarine needs to travel at 21 feet per minute to rise to –180 feet. The second submarine must travel 2 feet per minute faster than the first.
