40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms. As they collide and hold each other, what is the speed of the couple?

Glencoe Physics: Principles and Problems, Student Edition
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ISBN:9780078807213
Author:Paul W. Zitzewitz
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Chapter9: Momentum And Its Conservation
Section: Chapter Questions
Problem 93A
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A 40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms. As they collide and hold each other, what is the speed of the couple?

2. A 40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms.
As they collide and hold each other, what is the speed of the couple?
m =
Vo =
Vo =
Vị =
Transcribed Image Text:2. A 40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open arms. As they collide and hold each other, what is the speed of the couple? m = Vo = Vo = Vị =
Expert Solution
Step 1

As per the given data, 

Mass of the girl (m2)=40 kg ;

Initial speed of girl (u1)=3.5 m/s ;

Mass of her friend (m2) = 65 kg ;

Initial speed of her friend (u2)=0 rest)(

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