$4$

A simple harmonic oscillator's position$-$time function is:

$x(t)=0\mathrm{.}03$mcos$(2t+\frac{}{4})$

This oscillator makes one oscillation every

flag

Select one:

a$.3\mathrm{.}14$ seconds

b$.2$ seconds

c$.0\mathrm{.}318$ seconds

d$.2$ p seconds