Answered: A brick of mass 1kg travels to the…

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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Question

A brick of mass 1kg travels to the right at 0.9c, where c is the speed of light. It collides with another brick of mass 2kg which is at rest before the collision. After the collision, the lighter brick has a speed of 0.35c, still to the right.

What is the momentum of the heavier brick after the collision? Keep three significant digits.

(Hint: be careful to use the relativistic expressions for momentum)

Expert Solution

Step 1

Write the relativistic expression for the momentum.

$p = \frac{m v}{\sqrt{1 - \frac{v^{2}}{c^{2}}}}$

Here, m is the mass of the particle, v is the speed of the particle, and c is the speed of light.

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