Answer:1.742 J
Explanation:
Given
mass of block [tex]m=2.2 kg[/tex]
[tex]k=825 N/m[/tex]
Compression in spring [tex]x=0.065 m[/tex]
Elastic Potential Energy of the Spring-mass system is given by
[tex]E=\frac{1}{2}kx^2[/tex]
where [tex]k=spring\ constant[/tex]
[tex]x=compression\ in\ spring[/tex]
[tex]E=\frac{1}{2}\times 825\times (0.065)^2[/tex]
[tex]E=412.5\times 42.25\times 10^{-4}[/tex]
[tex]E=1.742 J[/tex]