A body executing $S.H.M.$ along a straightline has a velocity of $3 \,ms ^{-1}$ when it is at a distance of $4 \,m$ from its mean position and $4 \,ms ^{-1}$ when it is at a distance of $3 \,m$ from its mean position. Its angular frequency and amplitude are
  • A$2 \,rad s ^{-1}$ and $5 \,m$
  • B$1 \,rad s ^{-1}$ and $10 \,m$
  • C$2 \,rad s ^{-1}$ and $10 \,m$
  • D$1 \,rad s ^{-1}$ and $5 \,m$
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