A railroad car of mass 21800 kg moving eastwards with a speed of 3.61 m/s collides and couples with another rail car of mass 41800 kg, moving in the same direction with a speed of 1.4 m/s. What is the speed of the two coupled cars after the collision? (make east positive)
A railroad car of mass 21800 kg moving eastwards with a speed of 3.61 m/s collides and couples with another rail car of mass 41800 kg, moving in the same direction with a speed of 1.4 m/s. What is the speed of the two coupled cars after the collision? (make east positive)
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 77A
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Question
I need help with number 5 please and round all numbers to three significant digits
![4.
A 0.317-kg ball traveling at 7.42 m/s west collides
head on with a 1.02-kg ball moving in the opposite
direction at a velocity of 10.2 m/s. The 0.317-kg ball
rebounds at 15.6 m/s after the collision. Find the
velocity of the second ball. (use west as the positive
direction)
05.
A railroad car of mass 21800 kg moving eastwards
with a speed of 3.61 m/s collides and couples with
another rail car of mass 41800 kg, moving in the
same direction with a speed of 1.4 m/s. What is the
speed of the two coupled cars after the collision?
(make east positive)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd04dac28-cc14-43a0-a03b-ad222f761d43%2F0345baf7-608a-4ace-be97-45cfeb6d38af%2Funce4x_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.
A 0.317-kg ball traveling at 7.42 m/s west collides
head on with a 1.02-kg ball moving in the opposite
direction at a velocity of 10.2 m/s. The 0.317-kg ball
rebounds at 15.6 m/s after the collision. Find the
velocity of the second ball. (use west as the positive
direction)
05.
A railroad car of mass 21800 kg moving eastwards
with a speed of 3.61 m/s collides and couples with
another rail car of mass 41800 kg, moving in the
same direction with a speed of 1.4 m/s. What is the
speed of the two coupled cars after the collision?
(make east positive)
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