A particle executing a simple harmonic motion has a period of 6 sec. The time taken by the particle to move from the mean position to half the amplitude, starting from the mean position is _____
1
\(\frac{2}{3}\sec \)
2
\(\frac{1}{2}\sec \)
3
\(\frac{3}{4}\sec \)
4
\(\frac{1}{4}\sec \)