2. A stationary 20.0 kg mass explodes into three fragments. As shown in the diagram below the 5.0 kg fragment moves north with an initial speed of 7.0 m/s. The 9.0 kg fragment moves off at 38° S of W with an initial speed of 4.0 m/s. slwh 7.0 m/s EUSK 5.0 kg 4.0 m/s 90 kg 6.0 kg a. What must the total momentum for all three pieces be after the explosion? State the law that justifies your answer. Exbjosiou b. Any collision or explosion must adhere to the Law of Conservation of Energy. Collisions that are perfectly elastic are ones in which Kinetic Energy is Conserved. Is it possible for an explosion such as this to be elastic? Is kinetic energy gained or lost? Briefly explain. C. State how energy is conserved in an explosion like this? Be specific. 2021-12-09 Page 10 of 15 SOST-75-08 PHYSICS 12 WCLN.ca d. What is the velocity (magnitude and direction) of the 6.0 kg fragment after the explosion'? Solve this question using both the trigonometric and the component methods. Trig. Method (include a vector diagram) Component Method (show all work) Co 21-12-09 Page 11 of 15

2. A stationary 20.0 kg mass explodes into three fragments. As shown in the diagram below the 5.0 kg fragment moves north with an initial speed of 7.0 m/s. The 9.0 kg fragment moves off at 38° S of W with an initial speed of 4.0 m/s. slwh 7.0 m/s EUSK 5.0 kg 4.0 m/s 90 kg 6.0 kg a. What must the total momentum for all three pieces be after the explosion? State the law that justifies your answer. Exbjosiou b. Any collision or explosion must adhere to the Law of Conservation of Energy. Collisions that are perfectly elastic are ones in which Kinetic Energy is Conserved. Is it possible for an explosion such as this to be elastic? Is kinetic energy gained or lost? Briefly explain. C. State how energy is conserved in an explosion like this? Be specific. 2021-12-09 Page 10 of 15 SOST-75-08 PHYSICS 12 WCLN.ca d. What is the velocity (magnitude and direction) of the 6.0 kg fragment after the explosion'? Solve this question using both the trigonometric and the component methods. Trig. Method (include a vector diagram) Component Method (show all work) Co 21-12-09 Page 11 of 15

Name: 2. A stationary 20.0 kg mass explodes into three fragments. As shown
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Description: 2. A stationary 20.0 kg mass explodes into three fragments. As shown in the diagram belowthe 5.0 kg fragment moves north with an initial speed of 7.0 m/s. The 9.0 kg fragmentmoves off at 38° S of W with an initial speed of 4.0 m/s.slwh7.0 m/sEUSK5.0

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum, Impulse, And Collisions

Section: Chapter Questions

Problem 78AP: A 60-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending...

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