- #1
Sekonda
- 207
- 0
Hey,
If initially I have some solid sphere spinning at some initial angular velocity and in its final state I have the same solid sphere spinning at a different angular velocity except some of its mass has moved to a ring 45 degrees in latitude from centre , such that this ring of mass is closer to the rotational axis (rotational axis is just a diameter axis through centre of solid sphere), how do I determine the new angular velocity?
I am given the radius of gyration of the solid sphere, but I'm not sure what it is and what use it would have in this scenario.
I'm fairly sure initially I have some angular momentum 2/5Mr^2 * initial angular velocity, but then I'm unsure how to formulate the final state angular momentum!
Thanks,
S
If initially I have some solid sphere spinning at some initial angular velocity and in its final state I have the same solid sphere spinning at a different angular velocity except some of its mass has moved to a ring 45 degrees in latitude from centre , such that this ring of mass is closer to the rotational axis (rotational axis is just a diameter axis through centre of solid sphere), how do I determine the new angular velocity?
I am given the radius of gyration of the solid sphere, but I'm not sure what it is and what use it would have in this scenario.
I'm fairly sure initially I have some angular momentum 2/5Mr^2 * initial angular velocity, but then I'm unsure how to formulate the final state angular momentum!
Thanks,
S