A dolphin is swimming at a depth of –3.4 meters with respect to sea level when it begins diving deeper at a constant rate of –0.25 meter per

Question

A dolphin is swimming at a depth of –3.4 meters with respect to sea level when it begins diving deeper at a constant rate of –0.25 meter per second. In how many seconds will the dolphin reach a depth of 9.9 meters below sea level?

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Cherry 4 years 2021-07-20T06:13:34+00:00 1 Answers 20 views 0

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    2021-07-20T06:15:09+00:00

    Answer: 26 s

    Step-by-step explanation:

    Given

    Dolphin is 3.4 meters below the sea level

    It started moving at a rate of -0.25\ m/s

    Distance travel in the vertical direction by dolphin is

    \Rightarrow 9.9-3.4=6.5\ m

    time taken is given by

    \Rightarrow time(t)=\frac{\text{Distance}}{\text{Speed}}\\\\\Rightarrow t=\frac{6.5}{0.25}=26\ s

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