Two carts, labeled 1 and 2, are headed toward each other along a level track. Both carts roll without friction and the only significant horizontal forces acting on the carts are the forces that they exert on each other. Cart 1 has a mass of 2.13 kg. Before the collision it was moving to the right with a speed v1j of 1.9 m/s. Cart 2 has a mass of 3.11 kg. Before the collision it was moving to the left with a speed v2 of 1.8 m/s. These two speeds, v1¡ and v2; are measured in the laboratory reference frame (the frame in which the track is not moving). The two carts had a completely elastic collision. Calculate the velocity (in units of meters per second) of cart 1 after the collision, as measured in the laboratory frame. The positive direction points to the right, and the sign (positive or negative) of your answer is important.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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Figure 1
The positive direction
1i
2i
m1
m2
"The lab frame:"
This track is not moving.
Transcribed Image Text:Figure 1 The positive direction 1i 2i m1 m2 "The lab frame:" This track is not moving.
Two carts, labeled 1 and 2, are headed toward each other along a level
track. Both carts roll without friction and the only significant
horizontal forces acting on the carts are the forces that they exert on
each other.
Cart 1 has a mass of 2.13 kg. Before the collision it was moving to the
right with a speed v1j of 1.9 m/s.
Cart 2 has a mass of 3.11 kg. Before the collision it was moving to the
left with a speed v2j of 1.8 m/s.
These two speeds, v1j and v2; are measured in the laboratory
reference frame (the frame in which the track is not moving).
The two carts had a completely elastic collision.
Calculate the velocity (in units of meters per second) of cart 1 after the
collision, as measured in the laboratory frame. The positive direction
points to the right, and the sign (positive or negative) of your answer is
important.
Transcribed Image Text:Two carts, labeled 1 and 2, are headed toward each other along a level track. Both carts roll without friction and the only significant horizontal forces acting on the carts are the forces that they exert on each other. Cart 1 has a mass of 2.13 kg. Before the collision it was moving to the right with a speed v1j of 1.9 m/s. Cart 2 has a mass of 3.11 kg. Before the collision it was moving to the left with a speed v2j of 1.8 m/s. These two speeds, v1j and v2; are measured in the laboratory reference frame (the frame in which the track is not moving). The two carts had a completely elastic collision. Calculate the velocity (in units of meters per second) of cart 1 after the collision, as measured in the laboratory frame. The positive direction points to the right, and the sign (positive or negative) of your answer is important.
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