1. Suppose a clay model of a koala bear has a mass of 0.25 kg and slides on ice at a speed of 0.85 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.45 kg. Both being soft clay, they naturally stick together. Friction on ice can be neglected. A sketch depicting the collision in Part 1 should have looked like this. m₂) v₂-0 Before collision After Collision m₁ O Koala bear clay model O Second clay model O both the clay models m₁ m₂ V1,2 Vf (a) To find the combined final velocity of the clay models, how will you define a system? (b) In the system in part (a), the forces of collision between the clay models are: del 11:39 AM
1. Suppose a clay model of a koala bear has a mass of 0.25 kg and slides on ice at a speed of 0.85 m/s. It runs into another clay model, which is initially motionless and has a mass of 0.45 kg. Both being soft clay, they naturally stick together. Friction on ice can be neglected. A sketch depicting the collision in Part 1 should have looked like this. m₂) v₂-0 Before collision After Collision m₁ O Koala bear clay model O Second clay model O both the clay models m₁ m₂ V1,2 Vf (a) To find the combined final velocity of the clay models, how will you define a system? (b) In the system in part (a), the forces of collision between the clay models are: del 11:39 AM
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Transcribed Image Text:1. Suppose a clay model of a koala bear has a mass of 0.25 kg and slides on ice at a speed of 0.85 m/s. It
runs into another clay model, which is initially motionless and has a mass of 0.45 kg. Both being soft
clay, they naturally stick together. Friction on ice can be neglected.
A sketch depicting the collision in Part 1 should have looked like this.
V₁
Before collision
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O Koala bear clay model
O Second clay model
O both the clay models
(a) To find the combined final velocity of the clay models, how will you define a system?
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After Collision
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(b) In the system in part (a), the forces of collision between the clay models are:
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Transcribed Image Text:101
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(b) In the system in part (a), the forces of collision between the clay models are:
O Internal to the system
O External to the system
(c) In the system in part (a), the total momentum of the system is
O Conserved, because no external forces act on the system
O Not conserved, because internal forces are present
O Not conserved, beacuse external forces are present
(d) Calculate their final velocity? (include at least 2 significant figures)
V₁ =
m/s
Submit Answer
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