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Interactive Exercises 9.16: Elastic Collision in One Dimension In these exercises, we analyze collisions between railroad freight cars in a rail yard. It is reasonable to suppose that, in a large railway switching yard there are often minor collisions between two cars on a horizontal, straight section of track-see Fig. 9.16.1. We shall model each car as a particle moving along a frictionless elastic collision. axis, and we shall model any interaction between the two cars as an Elastic bumper-- also called a "coupler knuckle" Car 2, mass m2 Car 1, mass m1 +x Interactive Figure 9.16.1: Two rail freight cars travel along a set of horizontal, straight rails. The cars have an elastic collision because of the elastic bumper placed on car 1. v Question 1 V Your answer is correct. Consider the following situation: car 2 is initially at rest (vri = 0), and the two cars have equal masses (mj = m,); car 1 travels toward car 2 with a velocity of vlir = 2.0 m/s. What is the velocity of each car after the collision? Vifx = Im/s v2f x m/s Click if you would like to Show Work for this question: Open Show Work SHOW SOLUTION SHOW ANSWER By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used

Interactive Exercises 9.16: Elastic Collision in One Dimension In these exercises, we analyze collisions between railroad freight cars in a rail yard. It is reasonable to suppose that, in a large railway switching yard there are often minor collisions between two cars on a horizontal, straight section of track-see Fig. 9.16.1. We shall model each car as a particle moving along a frictionless elastic collision. axis, and we shall model any interaction between the two cars as an Elastic bumper-- also called a "coupler knuckle" Car 2, mass m2 Car 1, mass m1 +x Interactive Figure 9.16.1: Two rail freight cars travel along a set of horizontal, straight rails. The cars have an elastic collision because of the elastic bumper placed on car 1. v Question 1 V Your answer is correct. Consider the following situation: car 2 is initially at rest (vri = 0), and the two cars have equal masses (mj = m,); car 1 travels toward car 2 with a velocity of vlir = 2.0 m/s. What is the velocity of each car after the collision? Vifx = Im/s v2f x m/s Click if you would like to Show Work for this question: Open Show Work SHOW SOLUTION SHOW ANSWER By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used

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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Interactive Exercises 9.16: Elastic Collision in One Dimension In these exercises, we analyze collisions between railroad freight cars in a rail yard. It is reasonable to suppose that, in a large railway switching yard there are often minor collisions between two cars on a horizontal, straight section of track-see Fig. 9.16.1. We shall model each car as a particle moving along a frictionless x axis, and we shall model any interaction between the two cars as an elastic collision. Elastic bumper- also called a "coupler knuckle" Car 2, mass m2 Car 1, mass m1 Interactive Figure 9.16.1: Two rail freight cars travel along a set of horizontal, straight rails. The cars have an elastic collision because of the elastic bumper placed on car 1. v Question 1 V Your answer is correct. Consider the following situation: car 2 is initially at rest (V2i y = 0), and the two cars have equal masses (mj = m2); car 1 travels toward car 2 with a velocity of vir = 2.0 m/s. What is the velocity of each car after the collision? Vif,x m/s V2f x [2 Im/s Click if you would like to Show Work for this question: Open Show Work SHOW SOLUTION SHOW ANSWWER By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used
Transcribed Image Text:Interactive Exercises 9.16: Elastic Collision in One Dimension In these exercises, we analyze collisions between railroad freight cars in a rail yard. It is reasonable to suppose that, in a large railway switching yard there are often minor collisions between two cars on a horizontal, straight section of track-see Fig. 9.16.1. We shall model each car as a particle moving along a frictionless x axis, and we shall model any interaction between the two cars as an elastic collision. Elastic bumper- also called a "coupler knuckle" Car 2, mass m2 Car 1, mass m1 Interactive Figure 9.16.1: Two rail freight cars travel along a set of horizontal, straight rails. The cars have an elastic collision because of the elastic bumper placed on car 1. v Question 1 V Your answer is correct. Consider the following situation: car 2 is initially at rest (V2i y = 0), and the two cars have equal masses (mj = m2); car 1 travels toward car 2 with a velocity of vir = 2.0 m/s. What is the velocity of each car after the collision? Vif,x m/s V2f x [2 Im/s Click if you would like to Show Work for this question: Open Show Work SHOW SOLUTION SHOW ANSWWER By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used
v Question 2 X Your answer incorrect. Try again. Suppose the cars are repositioned, and car 2 is loaded with many heavy bags so that its mass is now twenty times the mass of car 1, m2 = 20mj. Car 2 is initially at rest, and car 1 travels toward car 2 with velocity of vli = 2.0 m/s. What is the velocity of each car after the collision? Vifx =? m/s V2f x m/s Click if you would like to Show Work for this question: Open Show Work By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used SAVE FOR LATER SUBMIT ANSWER v Question 3 Suppose the cars are repositioned, and the many heavy bags are moved from car 2 to car 1. Now, the mass of car 1 is twenty times the mass of car 2, mj = 20m2. Car 2 is initially at rest, and car 1 travels toward car 2 with a velocity of vlix = 2.0 m/s. What is the velocity of each car after the collision? Vif,x = m/s V2f.x = m/s Click if you would like to Show Work for this question: Open Show Work
Transcribed Image Text:v Question 2 X Your answer incorrect. Try again. Suppose the cars are repositioned, and car 2 is loaded with many heavy bags so that its mass is now twenty times the mass of car 1, m2 = 20mj. Car 2 is initially at rest, and car 1 travels toward car 2 with velocity of vli = 2.0 m/s. What is the velocity of each car after the collision? Vifx =? m/s V2f x m/s Click if you would like to Show Work for this question: Open Show Work By accessing this Question Assistance, you will learn while you earn points based on the Point Potential Policy set by your instructor. Attempts: 1 of 5 used SAVE FOR LATER SUBMIT ANSWER v Question 3 Suppose the cars are repositioned, and the many heavy bags are moved from car 2 to car 1. Now, the mass of car 1 is twenty times the mass of car 2, mj = 20m2. Car 2 is initially at rest, and car 1 travels toward car 2 with a velocity of vlix = 2.0 m/s. What is the velocity of each car after the collision? Vif,x = m/s V2f.x = m/s Click if you would like to Show Work for this question: Open Show Work
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