BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A railroad car of mass 2.00 × 104 kg moving at 3.00 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? (b) How much kinetic energy is lost, in the collision?

(a)

To determine
Speed of the three coupled car.

Explanation

Given Info: Mass of the single car is m1=2.00×104kg , mass of the coupled car is m2=4.00×104kg , mass of all the three coupled cars is m3=6.00×104kg , velocity of the single car is v1=3.00m/s and velocity of the coupled car is v2=1.20m/s

Explanation:

Apply the law of conservation of momentum to coupled cars –three coupled cars

(m1v1+m2v2)i=(m3v3)f (1)

  • m1 is the mass of the single car.
  • m2 is the mass of the coupled car.
  • m3 is the mass of all the three coupled car.
  • v1 is the velocity of the single car.
  • v2 is the velocity of the coupled car.

Substitute 2.00×104kg for m1 , 4

(b)

To determine
Loss of kinetic energy.

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

The best way to control salt intake is to cut down on processed and fast foods. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

18-7 Write the IUPAC name for each carboxylic acid.

Introduction to General, Organic and Biochemistry

Rank the launch angles for the five paths in Figure 4.11 with respect to time of flight from the shortest time ...

Physics for Scientists and Engineers, Technology Update (No access codes included)