Answer: No.
Step-by-step explanation:
Given: A treasure chest sinks at a rate no less than 20 feet per second.
Speed = -20 feet per second.
The depth of ocean = -4200 feet
Since 1 minute = 60 seconds
Therefore 3 minutes=[tex]3\times60=[/tex]180 seconds
The depth D reached by treasure chest in 3 minutes is given by :-
[tex]D=Speed\times time\\\Rightarrow\ D=-20\times180\\\Rightarrow\ D=-3600\ feet[/tex]
Clearly -4200<-3600
Therefore, the treasure chest can not reach the ocean floor in less than 3 minutes.
