12–221. Two boats leave the pier P at the same time and travel in the directions shown. If va = 40 ft/s and vg 30 ft/s, determine the velocity of boat A relative to boat B. How long after leaving the pier will the boats be 1500 ft apart? y VA = 40 ft/s UR = 30 ft/s 30° 45°
12–221. Two boats leave the pier P at the same time and travel in the directions shown. If va = 40 ft/s and vg 30 ft/s, determine the velocity of boat A relative to boat B. How long after leaving the pier will the boats be 1500 ft apart? y VA = 40 ft/s UR = 30 ft/s 30° 45°
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