188 CHAPTER 2 Derivatives at an angle of 30°. At what rate is the distance from the plane to the radar station increasing a minute later? 48. Two people start from the same point. One walks east at 3 mi/h and the other walks northeast at 2 mi/h. How fast is the distance between the people changing after 15 minutes? 50 49. A runner sprints around a circular track of radius 100 m at a constant speed of 7 m/s. The runner's friend is standing 2.9 Linear Approximations and Differentials We have seen that a curve lie fact, by zooming in toward M/ at a distance 200 m from the center of the track. How fast is the distance between the friends changing when the distance between them is 200 m? 0. The minute hand on a watch is 8 mm long and the hour hand is 4 mm long. How fast is the distance between the tips of the hands changing at one o'clock?

188 CHAPTER 2 Derivatives at an angle of 30°. At what rate is the distance from the plane to the radar station increasing a minute later? 48. Two people start from the same point. One walks east at 3 mi/h and the other walks northeast at 2 mi/h. How fast is the distance between the people changing after 15 minutes? 50 49. A runner sprints around a circular track of radius 100 m at a constant speed of 7 m/s. The runner's friend is standing 2.9 Linear Approximations and Differentials We have seen that a curve lie fact, by zooming in toward M/ at a distance 200 m from the center of the track. How fast is the distance between the friends changing when the distance between them is 200 m? 0. The minute hand on a watch is 8 mm long and the hour hand is 4 mm long. How fast is the distance between the tips of the hands changing at one o'clock?

Name: Problem 49 188CHAPTER 2 Derivativesat an angle of 30°. At what rate is
Uploaded: 2024-03-20T07:06:41.000Z
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Description: Problem 49 188CHAPTER 2 Derivativesat an angle of 30°. At what rate is the distance from the plane tothe radar station increasing a minute later?48. Two people start from the same point. One walks east at3 mi/h and the other walks northeast at 2 mi/h