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Author Question: A 6.0-kg object moving 2.0 m/s in the positive x direction has a one-dimensional elastic collision ... (Read 172 times)

Engineer

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on: Jul 28, 2018
A 6.0-kg object moving 2.0 m/s in the positive x direction has a one-dimensional elastic collision with a 4.0-kg object moving 3.0 m/s in the opposite direction. What is the total kinetic energy of the two-mass system after the collision?
 a. 30 J
  b. 62 J
  c. 20 J
  d. 44 J
  e. 24 J

Question 2

A 3.0-kg object moving 8.0 m/s in the positive x direction has a one-dimensional elastic collision with an object (mass = M) initially at rest. After the collision the object of unknown mass has a velocity of 6.0 m/s in the positive x direction. What is M?
 a. 7.5 kg
  b. 5.0 kg
  c. 6.0 kg
  d. 4.2 kg
  e. 8.0 kg


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Tonny

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Reply #1 on: Jul 28, 2018
Answer to Question 1

A

Answer to Question 2

B


Engineer

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Reply #2 on: Jul 28, 2018
TY


Tonny

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Reply #3 on: Jul 28, 2018
You're welcome


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