This following applet is [b] ping-pong spinny ball dynamics after bounce[/b]
Created by prof Hwang Modified by Ahmed
Original project [url=http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=719.msg2636#msg2636] ping-pong spinny ball dynamics after bounce[/url]
Click check box to show the angular velocity with respect to the ball,,or the velocity at the bottom of the ball relative to the table (Vx-R*omega: friction force will be in the opposite direction).
You can have backspin or topsion by draging the slider to change the ratio R*w/vx (negative value for backspin).