The submarine is cruising at a depth of 50 meters, then dives 75 meters, then ascends (moves in the direction of the surface )60 meters, and then dives 45 meters. what is the submarine's final depth
To find the submarine's final depth, we need to calculate the total change in depth by considering its movements.
Let's break it down step by step:
1. Start at a depth of 50 meters.
2. Dive 75 meters, which means the submarine goes deeper by 75 meters.
Now the depth is 50 - 75 = -25 meters. (The negative sign indicates a dive below the starting depth.)
3. Ascend 60 meters, which means the submarine moves towards the surface by 60 meters.
Now the depth is -25 + 60 = 35 meters. (We add the positive distance to the negative depth.)
4. Dive 45 meters, which means the submarine goes deeper by 45 meters.
Now the depth is 35 - 45 = -10 meters.
Therefore, the submarine's final depth is -10 meters.