Hi guys,(adsbygoogle = window.adsbygoogle || []).push({});

I've been looking on the internet all day for a satisfactory solution to this 2d problem but haven't found anything that makes sense.

Let's say I have a sphere.

In fact lets call it a ball with a massmand it hits the ground with a velocityvy0andvx0, the ball also has an angular velocity ofw0when it hits the ground.

Let's say the frictional coefficientuor horizontal coefficient of restitutionexfor the ground is known.

What will be the post collisionvx1and angularw1velocities? How are these determined? Does the change in angular velocity somehow effect the linear velocity by transferring kinetic energy through the ground?

This problem is driving me nuts the closest thing I have found is a topic in my book which works though the problem without an initial angular velocity and this link about Garwins model.

http://web.kellegous.com/ecrits/000858" [Broken]

Any help on this would be greatly appreciated.

Thanks,

Matthew.

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# Post collision angular and linear and velocities of a rotating sphere

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