- #1
RGClark
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What velocity will a thin rod attain if you release it after twirling it around in a circle at high speed?
If you have a heavy bob attached to a light string rotating in a circle, then it will fly off with the speed it had in rotating when you release it.
However, if you have a rod rotating around at a fixed end, then release it, it will not fly off with the same velocity as the tip because it will continue to rotate at some speed because of angular momentum conservation.
So some of its energy will be in rotational motion and the rest in linear translational motion.
How do you calculate how much will be in linear translational energy, and so its linear velocity?
Bob Clark
If you have a heavy bob attached to a light string rotating in a circle, then it will fly off with the speed it had in rotating when you release it.
However, if you have a rod rotating around at a fixed end, then release it, it will not fly off with the same velocity as the tip because it will continue to rotate at some speed because of angular momentum conservation.
So some of its energy will be in rotational motion and the rest in linear translational motion.
How do you calculate how much will be in linear translational energy, and so its linear velocity?
Bob Clark