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For this question, make sure you recall the difference between displacement and distance travelled of a moving object. A bird flies along a straight line while its velocity is monitored. The following data is collected: Time (in hours) Velocity (in km/h) 0 30 0.5 45 45 1.5 50 2 30 2.5 -20 3 -25 3.5 -10 4 5 Answer the following questions with integer numbers. (a) Approximate the displacement of the bird (in km) during 0