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A particle of mass m moving with speed u makes a head-on collision with an identical particle which is initially at rest. The particles coalesce and move off with a common velocity. (a) Find the common speed of the particles after the collision. (b) Find the ratio of the kinetic energy of the system after the collision to that before it. (c) What happens to the kinetic energy that is 'lost'?

A particle of mass m moving with speed u makes a head-on collision with an identical particle which is initially at rest. The particles coalesce and move off with a common velocity. (a) Find the common speed of the particles after the collision. (b) Find the ratio of the kinetic energy of the system after the collision to that before it. (c) What happens to the kinetic energy that is 'lost'?

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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A particle of mass m moving with speed u makes a head-on collision with an identical particle which is initially at rest. The particles coalesce and move off with a common velocity. (a) Find the common speed of the particles after the collision. (b) Find the ratio of the kinetic energy of the system after the collision to that before it. (c) What happens to the kinetic energy that is 'lost'?
Transcribed Image Text:A particle of mass m moving with speed u makes a head-on collision with an identical particle which is initially at rest. The particles coalesce and move off with a common velocity. (a) Find the common speed of the particles after the collision. (b) Find the ratio of the kinetic energy of the system after the collision to that before it. (c) What happens to the kinetic energy that is 'lost'?
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