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A police car waits in hiding slightly off the highway the highway. A speeding car is spotted by the police car doing 40 m/sec. At the instant the speeding car passes the police car, the police car accelerates from rest at 4 m/sec² to catch the speeding car. The speed of the speeding car remains constant. a) How long does it take the police car to catch the speeding car? Answer: 20 sec b) What distance does the police car need to travel to catch the speeding car? Answer: 800 m. Car 1, Speeding Car Xo = 0 Vo = 40 m/sec a 0 m/sec² (constant speed) Car 2, Police AY X = 0 m Vo = 0 m/sec a = 4 m/sec²

A police car waits in hiding slightly off the highway the highway. A speeding car is spotted by the police car doing 40 m/sec. At the instant the speeding car passes the police car, the police car accelerates from rest at 4 m/sec² to catch the speeding car. The speed of the speeding car remains constant. a) How long does it take the police car to catch the speeding car? Answer: 20 sec b) What distance does the police car need to travel to catch the speeding car? Answer: 800 m. Car 1, Speeding Car Xo = 0 Vo = 40 m/sec a 0 m/sec² (constant speed) Car 2, Police AY X = 0 m Vo = 0 m/sec a = 4 m/sec²

An Introduction to Physical Science
An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter1: Measurement
Section: Chapter Questions
Problem 11E
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x = xót vót tật, ở = To +ất, v = vỏ +2āA,t=i + -b+√b²-4ac 2a
Transcribed Image Text:x = xót vót tật, ở = To +ất, v = vỏ +2āA,t=i + -b+√b²-4ac 2a
A police car waits in hiding slightly off the highway the highway. A speeding car is spotted by the police car doing 40 m/sec. At the instant the speeding car passes the police car, the police car accelerates from rest at 4 m/sec² to catch the speeding car. The speed of the speeding car remains constant. a) How long does it take the police car to catch the speeding car? Answer: 20 sec b) What distance does the police car need to travel to catch the speeding car? Answer: 800 m. Car 1, Speeding Car Xo = 0 Vo = 40 m/sec a=0 m/sec² (constant speed) Car 2, Police AY X = 0 m Vo = 0 m/sec a = 4 m/sec²
Transcribed Image Text:A police car waits in hiding slightly off the highway the highway. A speeding car is spotted by the police car doing 40 m/sec. At the instant the speeding car passes the police car, the police car accelerates from rest at 4 m/sec² to catch the speeding car. The speed of the speeding car remains constant. a) How long does it take the police car to catch the speeding car? Answer: 20 sec b) What distance does the police car need to travel to catch the speeding car? Answer: 800 m. Car 1, Speeding Car Xo = 0 Vo = 40 m/sec a=0 m/sec² (constant speed) Car 2, Police AY X = 0 m Vo = 0 m/sec a = 4 m/sec²
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