A Scientist Uses A Submarine To Study Ocean Life. She Begins A Sea Level, Which Is At An Elevation Of 0 Feet. She Travels Straight Down For 90 Seconds
A scientist uses a submarine to study ocean life. She begins a sea level, which is at an elevation of 0 feet. She travels straight down for 90 seconds at a speed of 3.5 feet per second. She then travels directly up for 30 seconds at a speed of 2.2 feet per second. After this one 120-second period , How much time, in seconds, will it take for the scientist to travel back to sea level at the submarines maximum speed of 4.8 ft./s? Round your answer to the nearest 10th of a second.
Answer:
51.9 sec
Step-by-step explanation:
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