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First, review momentum conservation. A car with a mass of 2000 kg is stopped at a red light. Along comes a second car with a mass of 1200 kg and an initial speed 40 m/s, and WHAM!!!, it hits the car at rest. How fast did the cars go after the collision, assuming they were stuck together?

First, review momentum conservation. A car with a mass of 2000 kg is stopped at a red light. Along comes a second car with a mass of 1200 kg and an initial speed 40 m/s, and WHAM!!!, it hits the car at rest. How fast did the cars go after the collision, assuming they were stuck together?

College Physics
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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ENERGY CONSERVATION Solve the following problems and remember, SHOW ALL WORK ALL OF THE TIME! No credit is given for answers without work shown. First, review momentum conservation. A car with a mass of 2000 kg is stopped at a red light. Along comes a second car with a mass of 1200 kg and an initial speed 40 m/s, and WHAM!!!, it hits the car at rest. How fast did the cars go after the collision, assuming they were stuck together? m, V + m, v21 = m, Vr + m, V2t Or... remember that momentum is conserved and use p = m•v A picture might help... Label the drawing before m/sec kg kg after
Transcribed Image Text:ENERGY CONSERVATION Solve the following problems and remember, SHOW ALL WORK ALL OF THE TIME! No credit is given for answers without work shown. First, review momentum conservation. A car with a mass of 2000 kg is stopped at a red light. Along comes a second car with a mass of 1200 kg and an initial speed 40 m/s, and WHAM!!!, it hits the car at rest. How fast did the cars go after the collision, assuming they were stuck together? m, V + m, v21 = m, Vr + m, V2t Or... remember that momentum is conserved and use p = m•v A picture might help... Label the drawing before m/sec kg kg after
%3D m,•vi + m,°V2i = m,•v1 + m2°V21 Or... remember that momentum is conserved and use p = m•v A picture might help... Label the drawing before m/sec kg kg after m/sec kg kg
Transcribed Image Text:%3D m,•vi + m,°V2i = m,•v1 + m2°V21 Or... remember that momentum is conserved and use p = m•v A picture might help... Label the drawing before m/sec kg kg after m/sec kg kg
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