## anonymous 3 years ago An undated oscillator of mass m and natural frequency Wo moves under the action of an external force F=Fo sen(wt)! Starting from the equilibrium position with initial velocity zero. Find the deslocament x(t).

1. anonymous

*Undamped

2. UnkleRhaukus

sen.?

3. anonymous

Sin(wt), sorry

4. UnkleRhaukus

|dw:1345809109629:dw|

5. UnkleRhaukus

$F=F_0 \sin(\omega t)$

6. UnkleRhaukus

and your looking for the displacement x(t) ?

7. UnkleRhaukus

$F=m\ddot x$ $x=\iint\frac Fm\text dt^2$

8. anonymous

The function x(t) that describes the positivos of the mass

9. UnkleRhaukus

$x=\frac{F_0}{m}\iint \sin(\omega t)\cdot\text dt^2$

10. UnkleRhaukus

can you see how i have arrived at the integral? can you evaluate the integral?

11. anonymous

Still not...