From an elevation of 3.5 m below the surface of the water, a northern bottlenose whale dives at a rate of 1.8 m/s. What is the whale’s depth after 4 min?
To find the depth of the whale after 4 minutes, we first need to find the total distance the whale has traveled.
The rate at which the whale is diving is 1.8 m/s.
There are 60 seconds in a minute, so in 4 minutes, the whale will have traveled 1.8 m/s * 60 s/min * 4 min = 432 meters.
The initial elevation is 3.5 meters below the surface of the water, so the total depth after 4 minutes is 3.5 meters + 432 meters = 435.5 meters.
Therefore, the whale's depth after 4 minutes is 435.5 meters.