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14. Two masses mį = 7 kg and m2 = 14 kg undergo an elastic collision as shown where 0 = 30°. You know that m, has an initial speed v,; = 9 m/s and you know that m, has an initial speed v2i = 3 m/s before the collision. Calculate the final speed after the collision v,f for the first mass m. Before After А. 3.0 m/s В. 4.5 m/s С. 6.0 m/s D. 7.0 m/s E. 9.0 m/s

14. Two masses mį = 7 kg and m2 = 14 kg undergo an elastic collision as shown where 0 = 30°. You know that m, has an initial speed v,; = 9 m/s and you know that m, has an initial speed v2i = 3 m/s before the collision. Calculate the final speed after the collision v,f for the first mass m. Before After А. 3.0 m/s В. 4.5 m/s С. 6.0 m/s D. 7.0 m/s E. 9.0 m/s

College Physics
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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I am unsure how to do this problem with out the final velocity of the second object.

14. Two masses m, = 7 kg and m2 = 14 kg undergo an elastic collision as shown where 0 = 30°. You know that m, has an initial speed v1; = 9 m/s and you know that m, has an initial speed v2i = 3 m/s before the collision. Calculate the final speed after the collision v1f for the first mass m1: Before After А. 3.0 m/s В. 4.5 m/s C. 6.0 m/s D. 7.0 m/s E. 9.0 m/s
Transcribed Image Text:14. Two masses m, = 7 kg and m2 = 14 kg undergo an elastic collision as shown where 0 = 30°. You know that m, has an initial speed v1; = 9 m/s and you know that m, has an initial speed v2i = 3 m/s before the collision. Calculate the final speed after the collision v1f for the first mass m1: Before After А. 3.0 m/s В. 4.5 m/s C. 6.0 m/s D. 7.0 m/s E. 9.0 m/s
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