The amplitude of a particle executing SHM about \( O \) is \( 10 \mathrm{~cm} \). Then (a) when ...

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The amplitude of a particle executing SHM about \( O \) is \( 10 \mathrm{~cm} \). Then
(a) when the \( \mathrm{KE} \) is \( 0.64 \) times of its maximum \( \mathrm{KE} \), its displacement is \( 6 \mathrm{~cm} \) from \( O \)
(b) its speed is half the maximum speed when its displacement is half the maximum displacement
(c) Both (a) and (b) are correct
P
(d) Both (a) and (b) are wrong
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