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

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Units and Dimensions

These are generally defined as the terms which precede or describes the dimensions further. These are also further divided into two parts namely fundamental units and the derived units.

Question

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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

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