Damped Oscillation with a Driving Force (Help)

  • Thread starter treverd
  • Start date
  • #1
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Homework Statement


A sinusoidally varying driving force is applied to a damped harmonic oscillator of force constant k and mass m. If the damping constant has a value b_1, the amplitude is A_1 when the driving angular frequency equals sqrt (k/m).

In terms of A_1, what is the amplitude for the same driving frequency and the same driving force amplitude F_{max}, if the damping constant is 3b?

In terms of A_1, what is the amplitude for the same driving frequency and the same driving force amplitude F_{max}, if the damping constant is (1/2)b?

Homework Equations


A= (Fmax/(sqrt(k-mw^2)^2+(b^2w^2))

w= omega


The Attempt at a Solution


I try to put in the the b values but it is saying it is incorrect.

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
14
0
I got the answers they are

(1/3) A_1

and

2A_1
 
  • #3
G01
Homework Helper
Gold Member
2,665
16
Where is your work? How can I know what you did wrong if you don't show me your work?

EDIT: I see you figured it out. Good Job!
 

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