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GATE ME 2001
MCQ (Single Correct Answer)
+1
-0.3
In the figure shown, the spring deflects by $$\delta $$ to position A ( the equilibrium position) when a mass $$m$$ is kept on it. During free vibration, the mass is at position $$B$$ at some instant. The change in potential energy of the spring mass system from position $$A$$ to position $$B$$ is GATE ME 2001 Theory of Machines - Vibrations Question 71 English
A
$${1 \over 2}k{x^2}$$
B
$${1 \over 2}k{x^2} - mgx$$
C
$${1 \over 2}k{\left( {x + \delta } \right)^2}$$
D
$${1 \over 2}k{x^2} + mgx$$
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