A particle executes \( \mathrm{SHM} \) of period \( 1.2 \mathrm{~s} \) and amplitude \( 8 \mathr...

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A particle executes \( \mathrm{SHM} \) of period \( 1.2 \mathrm{~s} \) and amplitude \( 8 \mathrm{~cm} \). Find the time it takes to travel \( 3 \mathrm{~cm} \) from the positive extremity of its oscillation. \( \left[\cos ^{-1}(5 / 8)=0.9 \mathrm{rad}\right] \)
\( \mathrm{P} \)
(a) \( 0.28 \mathrm{~s} \)
(b) \( 0.32 \mathrm{~s} \)
W
(c) \( 0.17 \mathrm{~s} \)
(d) \( 0.42 \mathrm{~s} \)
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