Two blocks of masses m 1 and m 2 approach each other ona horizontal table with the same constant speed, v 0, as measuredby a laboratory observer. The blocks undergo a perfectlyelastic collision, and it is observed that m 1 stops but m 2 movesopposite its original motion with some constant speed, v.(a) Determine the ratio of the two masses, m 1/m 2. (b) What isthe ratio of their speeds, v/v 0?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 6OQ: A 2-kg object moving to the right with a speed of 4 m/s makes a head-on, elastic collision with a...
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Two blocks of masses m 1 and m 2 approach each other on
a horizontal table with the same constant speed, v 0, as measured
by a laboratory observer. The blocks undergo a perfectly
elastic collision, and it is observed that m 1 stops but m 2 moves
opposite its original motion with some constant speed, v.
(a) Determine the ratio of the two masses, m 1/m 2. (b) What is
the ratio of their speeds, v/v 0?

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