C at this point c, this has reached a maximum velocity that it can ever have because all the potential energy has been converted to kinetic energy.
在这个点，达到它能达到的，最大动能，因为所有的势能，都转化成了动能。
The angular velocity is zero when you release it and is a maximum when it goes through the lowest point.
角速度是,当你释放它的时候,当它到达最低点,速度达到最大。
The angular velocity is zero when you release it and is a maximum when it goes through the lowest point.
角速度是,当你释放它的时候,当它到达最低点,速度达到最大。
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