Concept explainers
The two skaters of Exercise 56 are moving in opposite directions when they collide and stick together. Answer the same questions for this case.
(a)
The final speed of the system.
Answer to Problem 57E
The final speed of the system is
Explanation of Solution
Given info: Mass of the first skater is
Write the expression from conservation of momentum.
Here,
Substitute
Conclusion:
Therefore, the final speed of the system is
(b)
The amount of kinetic energy lost.
Answer to Problem 57E
The amount of kinetic energy lost is
Explanation of Solution
Given info: Mass of the first skater is
Write the expression for kinetic energy lost.
Here,
Substitute
Conclusion:
The amount of kinetic energy lost is
Want to see more full solutions like this?
Chapter 3 Solutions
Physical Universe
- A piece of putty and a tennis ball with the same mass are thrown against a wall with the same velocity. Which object experience a greater impulse from the wall or are the impulses equal? Explain.arrow_forwardTwo objects of equal mass are moving with equal and opposite velocities when they collide. Can all the kinetic energy be lost in the collision?arrow_forwardYou put your astronomy textbook and your No. 2 pencil on a ceramic tile floor, and you blow on each. Which has more inertiathe pencil, the textbook, or neither? Why? Which has more momentum? Why?arrow_forward
- An object that has a small mass and an object that has a large mass have the same kinetic energy. Which mass has the largest momentum?arrow_forwardIntegrated Concepts Repeat Exercise 4.47 for a shell fired at an angle 10.0° from the vertical.arrow_forwardIs it possible for a small force to produce a larger impulse on a given object than a large force? Explain.arrow_forward
- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice UniversityGlencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-HillCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningModern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningClassical Dynamics of Particles and SystemsPhysicsISBN:9780534408961Author:Stephen T. Thornton, Jerry B. MarionPublisher:Cengage Learning