(Solved): As shown in Figure A1.8, a dolphin swims near the sea surface \( 100 \mathrm{~m} \) west and then ...

As shown in Figure A1.8, a dolphin swims near the sea surface \( 100 \mathrm{~m} \) west and then \( 90.0 \mathrm{~m} \) in a direction \( 33.0^{\circ} \) east of north. It then dives below the surface and swims an additional distance in an unknown direction. The final position of the dolphin is \( 60.0 \mathrm{~m} \) directly below a floating buoy located \( 125 \mathrm{~m} \) north of the starting point. Calculate the dolphin's displacement during the dive. Figure A1.8