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x = A/2
AS potential energy = 1/2 k x^2
1/2 k ( A/2)^2
1/2 K A^2/4
k A^2/8 = 2.5
1/2 kA^2 = 4× 2.5 = 10
As total energy is 1/2 KA^2
So it's 10 J
AS potential energy = 1/2 k x^2
1/2 k ( A/2)^2
1/2 K A^2/4
k A^2/8 = 2.5
1/2 kA^2 = 4× 2.5 = 10
As total energy is 1/2 KA^2
So it's 10 J
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