• Support PF! Buy your school textbooks, materials and every day products Here!

Damped oscillations - Finding damping coefficient

  • Thread starter diffusion
  • Start date
  • #1
73
0

Homework Statement


A 50.0g hard-boiled egg moves on the end of a spring with force constant k = 25.0 N/m. It is released with an amplitude 0.300m. A damping force Fx = -bv acts on the egg. After it oscillates for 5.00s, the amplitude of the motion has decreased to 0.100m.
Calculate the magnitude of the damping coefficient b.

Homework Equations


render?tex=x+%3D+Ae%5E%7B-bt%2F2m%7D%5Ccos%7B%28%5Comega+%27t%2B%5Cphi+%29%7D.gif



The Attempt at a Solution


I honestly have no idea how to approach this question. Could someone steer me in the right direction?
 

Answers and Replies

  • #2
73
0
Anyone?
 
  • #3
Redbelly98
Staff Emeritus
Science Advisor
Homework Helper
Insights Author
12,098
129

Homework Equations


render?tex=x+%3D+Ae%5E%7B-bt%2F2m%7D%5Ccos%7B%28%5Comega+%27t%2B%5Cphi+%29%7D.gif
Note that the amplitude, at time t, is given by


Amplitude = A e-bt/2m
 

Related Threads for: Damped oscillations - Finding damping coefficient

Replies
2
Views
502
Replies
21
Views
46K
Replies
15
Views
2K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
1
Views
3K
  • Last Post
2
Replies
25
Views
21K
  • Last Post
Replies
8
Views
4K
  • Last Post
Replies
3
Views
7K
Top