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Section 4_1

# Section 4_1 - Section 4.1...

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Section 4.1 (Homework) MACE JOHN RANDALL MA 141, section 007, Fall 2008 Instructor: Kyle Thompson Web Assign Current Score: 10 out of 10 Due: Thursday, October 30, 2008 10:00 PM EDT Description Related Rates The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [SCalcCC2 4.1.06.] 2/2 points At noon , ship A is 150 km west of ship B. Ship A is sailing east at 35 km/h and ship B is sailing north at 25 km/h. How fast is the distance between the ships changing at 4 P.M. ? 21.39 21.4 km/h 2. [SCalcCC2 4.1.08.] 2/2 points A street light is mounted at the top of a 15 foot tall pole. A man 6 ft tall walks away from the pole with a speed of 6 ft/s along a straight path. How fast is the tip of his shadow moving when he is 40 ft from the pole? 10 10 ft/s 3. [SCalcCC2 4.1.10.] 2/2 points A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a speed of 1.5 m/s, how fast is the length of his shadow on

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