# Fun springs that Oscillate

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1. Dec 4, 2014

### littlejon

1. The problem statement, all variables and given/known data

2. Relevant equations

phase constant: y= Asin(wt +phi)
3. The attempt at a solution
2*sin(360) =0
How does one approach this problem?

2. Dec 4, 2014

### Staff: Mentor

Welcome to the PF.

The Relevant Equation that you list is not applicable. Look for an equation that relates the period of oscillation of a spring+mass system to the spring constant K and the mass m. (or else just derive the equation yourself from what you know about how springs and masses work...) :-)

3. Dec 4, 2014

### littlejon

Now that I look at it closely. The answer has got to be C because each oscilation is the same as the previous.

4. Dec 4, 2014

### Staff: Mentor

I don't think so. Adding mass will slow down the oscillations...

5. Dec 5, 2014

### littlejon

I see so the answer has got to be E since we know its the same cylinder it would reduce the time by twice.

6. Dec 6, 2014

### lep11

No. You need the equation which relates period and mass.