## gerryliyana 2 years ago FORCED OSCILLLATION QUIZ.

1. gerryliyana

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

@Algebraic!

3. gerryliyana

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

4. ghazi

seems correct

5. gerryliyana

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

6. ghazi

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

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

8. ghazi

:) :)