Enjoy the fun of physics with simulations!

Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/

Title: Pendulum sets with different initial angle plus dampingPost by: ahmedelshfie on December 06, 2010, 04:39:26 pm
This applet Created by prof Hwang, modified by Ahmed.
Original applet Pendulum sets with different initial angle plus damping (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2010) This simulation show 11 pendulums with different initial angle(from minimum angle to minimum angle+angle range) It can be run in two different modes: 1. $\frac{d^2\theta}{dt}=-\frac{\ell}{g}\sin\theta-b\frac{d\theta}{dt}$ (equation for real pendulum) 2. $\frac{d^2\theta}{dt}\approx-\frac{\ell}{g}\theta-b\frac{d\theta}{dt}$ (equation for small angle approximation :assume $\sin\theta\approx\theta)$ The damping factor b=0 is the default. You can change it and find out what will happened. For the second mode: the period and damping factor are the same for all pendulums. Do you know why? |