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A block of mass 1.99 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.88 m/s. It eventually collides with a second, stationary block, of mass 3.90 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.99-kg and 3.90-kg blocks, respectively, after this collision? 2.64 m/s and 1.94 m/s 0.63 m/s and 1.60 m/s 1.26 m/s and 2.62 m/s 2.62 m/s and 1.26 m/s

A block of mass 1.99 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.88 m/s. It eventually collides with a second, stationary block, of mass 3.90 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.99-kg and 3.90-kg blocks, respectively, after this collision? 2.64 m/s and 1.94 m/s 0.63 m/s and 1.60 m/s 1.26 m/s and 2.62 m/s 2.62 m/s and 1.26 m/s

Principles of Physics: A Calculus-Based Text
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 3OQ
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A block of mass 1.99 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.88 m/s. It eventually collides with a second, stationary block, of mass 3.90 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.99-kg and 3.90-kg blocks, respectively, after this collision?
   
2.64 m/s and 1.94 m/s
   
0.63 m/s and 1.60 m/s
   
1.26 m/s and 2.62 m/s
   
2.62 m/s and 1.26 m/s
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