Question

A submarine begins at -212 feet below sea level. If

the submarine plans to descend at 15 feet per minutes,
how long will it take the submarine to reach a depth of
-287 feet?
A. 75 minutes C. 7 minutes
B. 8 minutes D. 5 minutes

Answer 1

Explanation:

Ending depth = -287

Starting depth= -212

Difference = -75 feet

The submarine plans on dropping 15 feet a minute.

Time = displacement / time = -75/-15 = 5 minutes.

Answer: D