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21 August, 22:13

A scuba diver dives down 15 feet into the ocean. He then swims 8 feet back up towards the surface. What is the position of the scuba diver relative to the surface?

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  1. 22 August, 01:26
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    7 feet below the surface

    Step-by-step explanation:

    Lets consider down direction=+ve (positive) and up direction = - ve (negative).

    A scuba diver dives down 15 feet into the ocean, therefore, position of scuba diver would be + 15 feet. (as we have considered down direction as positive)

    He then swims 8 feet back up towards the surface, now, position of scuba diver would be - 8 feet (as we have considered up direction as negative)

    So, overall position = 15 - 8 = 7 feet.

    Therefore, the position of the scuba diver relative to the surface = 7 feet below the surface.
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