A body is in simple harmonic motion with time period half second (T=0.5 s) and amplitude one cm (A=1 cm).Find the average velocity in the interval in which it moves from equilibrium position to half of its amplitude .

Question

$(a)\;4\;cm/s\qquad(b)\;6\;cm/s\qquad(c)\;12\;cm/s\qquad(d)\;16\;cm/s$