A wooden rod of negligible mass and length 77.0 cm is pivoted about a horizontal axis through its center. A white rat with mass 0.490 kg clings to one end of the stick, and a mouse with mass 0.180 kg clings to the other end. The system is released from rest with the rod horizontal. Part A If the animals can manage to hold on, what are their speeds as the rod swings through a vertical position
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