A police car is moving north towards an intersection at 24 miles per hour, and the police inside the car is using radar to determine the rate at which the distance is changing between them and another vehicle that is traveling west. When the police car is 3 miles south of the intersection and the other vehicle is 4 miles west of the intersection, it is determined that the distance between them and the other vehicle is increasing at a rate of 20 miles per hour. Find the speed of the car when the car is 4 miles west of the intersection.

A police car is moving north towards an intersection at 24 miles per hour, and the police inside the car is using radar to determine the rate at which the distance is changing between them and another vehicle that is traveling west. When the police car is 3 miles south of the intersection and the other vehicle is 4 miles west of the intersection, it is determined that the distance between them and the other vehicle is increasing at a rate of 20 miles per hour. Find the speed of the car when the car is 4 miles west of the intersection.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter2: Representing Motion

Section: Chapter Questions

Problem 69A

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