An object is on a vertical spring that is currently unstretched. Using conservation of energy find how far it will stretch when it is first released?
m = 100g = 0.1 kg
k = 15.5 N/m
The answer is supposed to be 21.5 cm = 0.215 m
I first tried
x = k/F where F is
mgand got the answer: 0.063 m
I then tried
F = ma where F is
mg - kx and a is equals 9.8.
mg - kx = ma but since one side would equal 0, the whole answer would end up being zero.
Is there another force acting on the object that is messing up my answer?
Update I just did:
Ek = Es and got the answer x = 0.787 m. If you subtract 0.787 from the meter you would get 21.3 which is pretty close to the answer. Is this correct?