a submarine is at depth of 200 m below the sea level.it descends at uniform rate of 3m/s for 20 secobds. find its depth from the surface after 20 seconds
-200-3(20)=-260
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To find the depth of the submarine from the surface after 20 seconds, we need to consider its initial depth and the rate at which it descends.
Given:
Initial depth = 200 m (below the sea level)
Descent rate = 3 m/s
Time = 20 seconds
To calculate the depth after 20 seconds, we can use the equation:
Depth = Initial Depth + (Descent Rate * Time)
Plugging in the values we have:
Depth = 200 m + (3 m/s * 20 s)
Calculating the depth:
Depth = 200 m + 60 m
Depth = 260 meters
Therefore, the depth of the submarine from the surface after 20 seconds would be 260 meters.