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Physics
Physics
Problem
What is the expression for the total mechanical energy
E
E
E
of a mass–spring system executing simple harmonic motion with amplitude
A
A
A
and spring constant
k
k
k
? a)
E
=
1
2
m
A
2
E=\dfrac12\,mA^{2}
E
=
2
1
m
A
2
b)
E
=
1
4
k
A
2
E=\dfrac14\,kA^{2}
E
=
4
1
k
A
2
c)
E
=
1
2
k
A
2
E=\dfrac12\,kA^{2}
E
=
2
1
k
A
2
d)
E
=
1
2
k
A
E=\dfrac12\,kA
E
=
2
1
k
A
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