Question 12. Two laboratory carts are placed on a frictionless surface. A spring is attached to both carts and compressed. A string holds the two carts together so that they are motionless. Cart I has a mass of m and cart II has a mass of 2.5m. Cart I Cart I m m String Spring The string is cut and the carts move in opposite directions; cart I has a velocity of 0.80 m/s, left. Cut string Spring Cart II The speed of cart II after the string is cut is A. 3.1 m/s B. 2.0 m/s C. 0.80 m/s D. 0.32 m/s 2.5m Cart II 2.5m VII

College Physics
11th Edition
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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Question 12.
Two laboratory carts are placed on a frictionless surface. A spring is attached
to both carts and compressed. A string holds the two carts together so that
they are motionless. Cart I has a mass of m and cart II has a mass of 2.5m.
1
Cart I
Cart I
m
String
Spring
The string is cut and the carts move in opposite directions; cart I has a velocity
of 0.80 m/s, left.
Cut string
Spring
Cart II
The speed of cart II after the string is cut is
A. 3.1 m/s
B.
2.0 m/s
C.
0.80 m/s
D.
0.32 m/s
2.5m
Cart II
2.5m
Transcribed Image Text:Question 12. Two laboratory carts are placed on a frictionless surface. A spring is attached to both carts and compressed. A string holds the two carts together so that they are motionless. Cart I has a mass of m and cart II has a mass of 2.5m. 1 Cart I Cart I m String Spring The string is cut and the carts move in opposite directions; cart I has a velocity of 0.80 m/s, left. Cut string Spring Cart II The speed of cart II after the string is cut is A. 3.1 m/s B. 2.0 m/s C. 0.80 m/s D. 0.32 m/s 2.5m Cart II 2.5m
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