4. A block of mass 1.90 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.59 m/s. It eventually collides with a second, stationary block, of mass 4.53 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.90-kg and 4.53-kg blocks, respectively, after this collision?     1.47 m/s and 2.12 m/s     2.12 m/s and 1.47 m/s     2.68 m/s and 1.80 m/s     1.03 m/s and 1.64 m/s

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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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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4. A block of mass 1.90 kg is placed on a frictionless floor and initially pushed northward, whereupon it begins sliding with a constant speed of 3.59 m/s. It eventually collides with a second, stationary block, of mass 4.53 kg, head-on, and rebounds back to the south. The collision is 100% elastic. What will be the speeds of the 1.90-kg and 4.53-kg blocks, respectively, after this collision?

   
1.47 m/s and 2.12 m/s
   
2.12 m/s and 1.47 m/s
   
2.68 m/s and 1.80 m/s
   
1.03 m/s and 1.64 m/s
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