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For more information, please see full course syllabus of AP Physics C/Mechanics
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Lecture Comments (3)

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Post by Jamal Tischler on December 17, 2015

At the last problem there were 2 mathematical possible solutions. (w^2-100)^2=20^2 => w^2-100=+-20 (+ or -). So w=10.9 rad/s or w=8.9 rad/s. These are 2 diffrent solutions for the same problem. So the spring will rezonate at 2 diffrent frequencies.

1 answer

Last reply by: Jamal Tischler
Wed Mar 18, 2015 2:11 PM

Post by Kajen Kirubahkaran on June 21, 2014

what would happen in space, in a vacuum where there is no air molecules and no other friction?  Would a spring oscillate forever?

Damped and Forced Oscillation

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Damped Oscillation 0:11
    • Spring Oscillation
    • Force of Friction F=-bv
    • Spring in Absence of Friction
    • No Damping
    • In Presence of Damping
  • Example 21:07
    • Pendulum Oscillating at 10 Degrees
    • After 10 Min Amplitude Becomes 5 Degrees
  • Forced Oscillation 30:18
    • Spring Oscillating up and Down, Applying Force
    • Steady State Solution
  • Example 46:48
    • Spring with Object Mass=0.1 kg