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TomRiddle369
Feb 5, 2011, 09:50 AM
An harmonic oscilator is made by hanging a mass of 23g to the end of a spring and separating the mass 7.5cm from it´s balance position. Before, we mesured the length without moving and without the mass which was 23,3cm and then with the mass on was 28.8cm. Find the angular velocity (pulse)

Unknown008
Feb 5, 2011, 10:13 AM
What is your attempt at the question?

TomRiddle369
Feb 5, 2011, 11:08 AM
F=Kx
mg=k0.055
0.023x9.81=k0.055
k=4.1
w=Sqrt(k/m)=Sqrt(4.1/0.023)=13.25 rad/s
Yes I did it, thanks a lot, I guess I just had to look at it with fresh eyes

Unknown008
Feb 6, 2011, 03:49 AM
Well done, some problems just require you to put a little more attention for you to solve :)

One tiny detail. Since the data given to you is to 3 sf, your final answer should also be in 3 sf, namely, 13.3 rad/s.