Question

a treasure chest sinks at a rate no less than 20 feet er second. the floor of the icean is at most at -4,200 feet. will the tresure chest reach the ocean floor in less than 3 minutes? explain.

Answer 1

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=$3\times60=$180 seconds

The depth D reached by treasure chest in 3 minutes is given by :-

$D=Speed\times time\\\Rightarrow\ D=-20\times180\\\Rightarrow\ D=-3600\ feet$

Clearly -4200<-3600

Therefore, the treasure chest can not reach the ocean floor in less than 3 minutes.