[单选题]
A uniform rod of mass M and length L is pivot
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(:lr,ujdjmt jn )y2p6vuc- cq,c ,wk.of its ends. The rod is released from rest from the horizon
,-) v urku lj,(:m,6jc j dct2py.cnwqtal position.
The moment of inertia of the rod when rotating about its end is $\frac{1}{2}ML^2$.
What is the linear speed of the bottom end of the rod as it swings past the vertical position?
