A) \[\left| a-b \right|\]
B) \[a+b\]
C) \[\sqrt{{{a}^{2}}+{{b}^{2}}}\]
D) \[\sqrt{{{a}^{2}}+{{b}^{2}}+2ab\,\cos \,x}\]
Correct Answer: B
Solution :
Energy stored by spring \[U=\frac{1}{2}k{{x}^{2}}\] But \[T=kx\] So energy stored \[=\frac{1}{2}\frac{{{(kx)}^{2}}}{k}\] \[=\frac{1}{2}\frac{{{T}^{2}}}{k}\]You need to login to perform this action.
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