$6$

A spring mass system executes a simple harmonic motion $x(t)=$Asin$(w_{n}t+).$ The system starts with an initial conditions $x_0=100mm$ and $v_0=150m\frac{m}{s}.$ It oscillates at a rate of $1Hz.$

Calculate the displacement, velocity and the acceleration @ $t=2\mathrm{.}5s$

Select one:

$x(t)=-100\mathrm{.}00087mm,v(t)=-149\mathrm{.}9769m\frac{m}{s},a(t)=3947\mathrm{.}894m\frac{m}{s^2}$

$x(t)=25\mathrm{.}00037mm,v(t)=159\mathrm{.}99m\frac{m}{s},a(t)=-9347\mathrm{.}919m\frac{m}{s^2}$

$x(t)=20\mathrm{.}00037mm,v(t)=159\mathrm{.}99m\frac{m}{s},a(t)=3947\mathrm{.}919m\frac{m}{s^2}$

$x(t)=29\mathrm{.}00037mm,v(t)=204\mathrm{.}425m\frac{m}{s},a(t)=247\mathrm{.}919m\frac{m}{s^2}$

Clear my choice