1. *Note: The collision shown below is a top-down view. Imagine that the process is occurring on a frictionless table and that you are looking down at it.* Two objects of mass 2-kg and 4-kg, respectively, collide and combine into a 6-kg mass. Before the collision, the 2-kg object was seen traveling at 10-m/s in a direction of 30 degrees below the horizontal, while the 4- kg object was seen traveling at an unknown speed in a direction of 40 degrees above the horizontal. The system is shown below. After the collision the combined object travels directly towards the right. a. Determine the speed of the 4-kg object before the collision b. Determine the speed of the 6-kg object after the collision 2- kg Before: 10-m/s 30° 4- kg V₁₂ =? 40° After: X-? 6- kg

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter9: Momentum And Its Conservation
Section: Chapter Questions
Problem 94A
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1. *Note: The collision shown below is a top-down view. Imagine that the process is occurring on a
frictionless table and that you are looking down at it.*
Two objects of mass 2-kg and 4-kg, respectively, collide and combine into a 6-kg mass. Before the collision,
the 2-kg object was seen traveling at 10-m/s in a direction of 30 degrees below the horizontal, while the 4-
kg object was seen traveling at an unknown speed in a direction of 40 degrees above the horizontal. The
system is shown below. After the collision the combined object travels directly towards the right.
a. Determine the speed of the 4-kg object before the collision
b. Determine the speed of the 6-kg object after the collision
2-
kg
Before:
10-m/s
30°
4-
kg
V₁₂ =?
40°
After:
X-?
6-
kg
Transcribed Image Text:1. *Note: The collision shown below is a top-down view. Imagine that the process is occurring on a frictionless table and that you are looking down at it.* Two objects of mass 2-kg and 4-kg, respectively, collide and combine into a 6-kg mass. Before the collision, the 2-kg object was seen traveling at 10-m/s in a direction of 30 degrees below the horizontal, while the 4- kg object was seen traveling at an unknown speed in a direction of 40 degrees above the horizontal. The system is shown below. After the collision the combined object travels directly towards the right. a. Determine the speed of the 4-kg object before the collision b. Determine the speed of the 6-kg object after the collision 2- kg Before: 10-m/s 30° 4- kg V₁₂ =? 40° After: X-? 6- kg
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