- #1
brainyasian
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Homework Statement
The system shown above has a spring attached to two masses. Mass I is 3 times greater in mass than Mass II. The spring is initially stretched and let go to allow the two masses to approach each other. Which of the following is the same for both masses?
a. speed
b. velocity.
c. acceleration
d. kinetic energy
e. magnitude of momentum
Homework Equations
Conservation of momentum
conservation of energy
The Attempt at a Solution
I know it's not the first three, but I'm not sure if you use the conservation of momentum or the conservation of energy for this problem