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Answer:
27.85 m/s
Explanation:
If we take the direction of motion of the aircraft carrier as positive, The speed of the deck is 31.0 m/s. Bond is running in the opposite direction, so his speed relative to the deck is -3.15 m/s.
Bond's speed relative to the stationary reference (the sub or the water), is ...
31.0 m/s - 3.15 m/s = 27.85 m/s
