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Easy Java Simulations (2001- ) => Dynamics => Topic started by: Fu-Kwun Hwang on November 14, 2010, 04:18:11 am



Title: Bouncing ball with rotation
Post by: Fu-Kwun Hwang on November 14, 2010, 04:18:11 am
The following simulation show a ball bouncing off the ground.
The ratio of velocity after bouncing to velocity before bouncing is eta.
i.e. vy'=eta *vy; (eta=0.95 as default)

The momentum change $\Delta P= m (eta+1)vy$
Assume the friction coeffieient is mu=0.1
The friction between ball and the ground produce momentum change and angular momentum change during bouncing.