A navy submarine descended from sea leval at a rate of 7 feet per second.
a. Write the decent rate as an integer
b. Find the submarine's elevation after 10 min.
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A Navy submarine descended from sea level at a rate of 7 feet per second. Find the submarine’s elevation after 10 minutes.
a. To write the descent rate as an integer, we need to consider the direction. Since the submarine is descending, which is a downward movement, we assign a negative sign to represent the direction.
Therefore, the descent rate can be written as -7 feet per second.
b. To find the submarine's elevation after 10 minutes, we first need to convert the time from minutes to seconds since the descent rate is given in feet per second.
There are 60 seconds in a minute, so in 10 minutes, there are 10 * 60 = 600 seconds.
Next, we can multiply the descent rate by the time to calculate the change in elevation:
Change in elevation = descent rate * time
Change in elevation = -7 feet/second * 600 seconds
Change in elevation = -4200 feet
Since the submarine is descending, the change in elevation will be negative. Therefore, the submarine's elevation after 10 minutes will be 4200 feet below sea level.
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-7
-7(10*60)