Find maximum amplitude for safe $SHM$ (block does not topple during $SHM$) of $a$ cubical block of side $'a'$ on a smooth horizontal floor as shown in figure (spring is massless)
  • A$\frac{{mg}}{{3K}}$
  • B$\frac{{3mg}}{K}$
  • C$\frac{{2mg}}{{3K}}$
  • D
    None
Diffcult
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