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A mass $M$ is suspended by two springs of force constants $K_1$ and $K_2$ respectively as shown in the diagram. The total elongation (stretch) of the two springs is
  • A$\frac{{Mg}}{{{K_1} + {K_2}}}$
  • B$\frac{{Mg\,({K_1} + {K_2})}}{{{K_1}{K_2}}}$
  • C$\frac{{Mg\,{K_1}{K_2}}}{{{K_1} + {K_2}}}$
  • D$\frac{{{K_1} + {K_2}}}{{{K_1}{K_2}Mg}}$
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