|A small device of mass 3.00 kg is sliding at 4.00 m/s along the x-axis on a horizontal frictionless surface. When it reaches the origin, it explodes into two pieces. One, of mass 1.00 kg, slides off at a velocity of 5.55 m/s at an angle of 50.0° above the x-axis. The other piece, of mass 2.00 kg slides off with an unknown velocity 02f. What is the kinetic energy of that second piece?
|A small device of mass 3.00 kg is sliding at 4.00 m/s along the x-axis on a horizontal frictionless surface. When it reaches the origin, it explodes into two pieces. One, of mass 1.00 kg, slides off at a velocity of 5.55 m/s at an angle of 50.0° above the x-axis. The other piece, of mass 2.00 kg slides off with an unknown velocity 02f. What is the kinetic energy of that second piece?
Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter9: Momentum And Its Conservation
Section: Chapter Questions
Problem 96A
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![|A small device of mass 3.00 kg is sliding at 4.00 m/s along the
x-axis on a horizontal frictionless surface. When it reaches the origin, it explodes into
two pieces. One, of mass 1.00 kg, slides off at a velocity of 5.55 m/s at an angle of 50.0°
above the x-axis. The other piece, of mass 2.00 kg slides off with an unknown velocity
02f. What is the kinetic energy of that second piece?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F14494f59-88ab-4e14-bfe6-eddafc8b6be3%2F4bf9bd6f-ebac-446e-a7f3-13170a064976%2Fpfjyem5_processed.png&w=3840&q=75)
Transcribed Image Text:|A small device of mass 3.00 kg is sliding at 4.00 m/s along the
x-axis on a horizontal frictionless surface. When it reaches the origin, it explodes into
two pieces. One, of mass 1.00 kg, slides off at a velocity of 5.55 m/s at an angle of 50.0°
above the x-axis. The other piece, of mass 2.00 kg slides off with an unknown velocity
02f. What is the kinetic energy of that second piece?
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
Step 1
Use conservation of momentum to calculate the kinetic energy of the second piece.
Equate the horizontal components of the momenta of the system.
Equate the vertical components of the momenta of the system.
Step 2
substitute the value of in equation (1) using equation (2).
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