A particle of mass $2 \,kg$, executing $SHM$ has amplitude $20 \,cm$ and time period $1 \,s$. Its maximum speed is ......... $m / s$
A$0.314$
B$0.628$
C$1.256$
D$2.512$
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C$1.256$
c (c)
$V_{\max }=A \omega$
$=20\,cm \times \frac{2 \pi}{T}$
$=0.2\,m \times \frac{2 \pi}{1 s }$
$=1.256\,m / s$
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