Question
A scientist uses a submarine to study ocean life.
She begins at sea level, which is an elevation of 0 feet.
She descends for 89 seconds at a speed of 4.1 feet per second.
She then ascends for 64 seconds at a speed of 2.6 feet per second.
After this 153-second period, how much time, in seconds, will it take for the scientist to travel back to sea level at 4.4 feet per second? Round your answer to the nearest tenth of a second.
She begins at sea level, which is an elevation of 0 feet.
She descends for 89 seconds at a speed of 4.1 feet per second.
She then ascends for 64 seconds at a speed of 2.6 feet per second.
After this 153-second period, how much time, in seconds, will it take for the scientist to travel back to sea level at 4.4 feet per second? Round your answer to the nearest tenth of a second.
Answers
(89*4.1) - (64*2.6) = current depth
Multiply current depth by 4.4 feet/second
Multiply current depth by 4.4 feet/second