MomentB. A 1.0 [kg] ball moving east collides head-on with a 2.0 [kg] ball that is also moving east with speed 2.0 [m/s]. What is the initial speed of the 1.0 [kg] ball if the final momenta of the two balls after collision is 7.0 [kg-m/s] East?? O 3.0 [m/s] O 5.0 [m/s] O 9.0 [m/s] 11 [m/s]

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 15P
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MomentB. A 1.0 [kg] ball moving east collides head-on with a 2.0 [kg] ball that is also moving east with speed 2.0
[m/s]. What is the initial speed of the 1.0 [kg] ball if the final momenta of the two balls after collision is 7.0
[kg-m/s] East??
3.0 [m/s]
O 5.0 [m/s]
O 9.0 [m/s]
11 [m/s]
Transcribed Image Text:MomentB. A 1.0 [kg] ball moving east collides head-on with a 2.0 [kg] ball that is also moving east with speed 2.0 [m/s]. What is the initial speed of the 1.0 [kg] ball if the final momenta of the two balls after collision is 7.0 [kg-m/s] East?? 3.0 [m/s] O 5.0 [m/s] O 9.0 [m/s] 11 [m/s]
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