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As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 58.0° north of west with a speed of 39.6 km/h. (Let î represent east and ĵ represent north.) (a) What is the unit-vector expression for the velocity of the hurricane? km/h î + km/h ĵ It maintains this velocity for 3.20 h, at which time the course of the hurricane suddenly shifts due north, and its speed slows to a constant 22.4 km/h. This new velocity is maintained for 1.50 h. (b) What is the unit-vector expression for the new velocity of the hurricane? km/h î + km/h ĵ (c) What is the unit-vector expression for the displacement of the hurricane during the first 3.20 h? km î + km ĵ (d) What is the unit-vector expression for the displacement of the hurricane during the latter 1.50 h? km î + km ĵ (e) How far from Grand Bahama is the eye 4.70 h after it passes over the island? km
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