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pb23me
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simple harmonic motion !
An ideal spring has a spring constant k=25N/M and is suspended vertically. A 1kg object is attatched to the unstrechted spring and released. It then performs ocillations.
What is the magnitude of the acceleration of the body when the extension of the spring is at maximum?
What is the maximum extension of the spring?
x=Asin(wt)
v=Awcos(wt)=0
a=-Aw2sin(wt)
F=-kx-mg=ma... I am not sure why kx and mg are in the same direction on this...
a=-(w2)x
Homework Statement
An ideal spring has a spring constant k=25N/M and is suspended vertically. A 1kg object is attatched to the unstrechted spring and released. It then performs ocillations.
What is the magnitude of the acceleration of the body when the extension of the spring is at maximum?
What is the maximum extension of the spring?
Homework Equations
x=Asin(wt)
v=Awcos(wt)=0
a=-Aw2sin(wt)
F=-kx-mg=ma... I am not sure why kx and mg are in the same direction on this...
a=-(w2)x
The Attempt at a Solution
I am totally confused how to even start with this problem at this point.Can i use the fact that the force of a spring on a mass =-kx=ma or would that be incorrect would i need to use F=ma=-kx-mg? if i use the second one it really doesn't get me anywheres since i don't have much information to begin with..
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