## gerryliyana Group Title FORCED OSCILLLATION QUIZ. one year ago one year ago

1. gerryliyana Group Title

The solution for Forced Harmonic motion is given by: $Q = Q_{1}e^{\left( -(R/2L)+\sqrt{(R/2L)^{2} - \omega_{o}^{2}} \right)t} + Q_{2}e^{\left( -(R/2L) - \sqrt{(R/2L)^{2}-\omega_{o}^{2}} \right)t}$ If $$Q = A \cos \theta$$ and $$\frac{ dQ }{ dt } \approx -\omega A \sin \theta t$$ at t =0, also known that $$R/L \approx 0$$ and $$\theta \approx \pi/2$$ Find the value of Q1 and Q2! Hbu???

2. gerryliyana Group Title

@Algebraic!

3. gerryliyana Group Title

i got Q1=Q2 = 1/2 A cos theta.,

4. ghazi Group Title

seems correct

5. gerryliyana Group Title

how to draw a graph Q vs t with quantitative data??

6. ghazi Group Title

yess its correct and to draw graph you can either draw on graph paper with neumerical value or you can use logarithmic graph paper

7. gerryliyana Group Title

very nice, thank u., ok i'll try..,

8. ghazi Group Title

:) :)