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Game_Of_Physics
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Member advised to use the homework template for posts in the homework sections of PF.
1. A moving rough cylinder of radius a, and mass m collides with an identical cylinder, on a smooth horizontal surface. Its centre of mass moves with linear velocity v0, and its angular velocity is ω0. What is the motion of the cylinders after the collision?
I have be told that the answer to this problem does not involve using conservation of angular momentum because there is an external torque during the collision, and the way to do it is using conservation of rotational energy. I do not understand why angular momentum is not conserved if you consider that it is a closed system.
Thanks in advance for help
I have be told that the answer to this problem does not involve using conservation of angular momentum because there is an external torque during the collision, and the way to do it is using conservation of rotational energy. I do not understand why angular momentum is not conserved if you consider that it is a closed system.
Thanks in advance for help