Solution Found!
Answer: A wooden rod of negligible mass and length 80.0 cm
Chapter 7, Problem 58P(choose chapter or problem)
Problem 58P
A wooden rod of negligible mass and length 80.0 cm is pivoted about a horizontal axis through its center. A white rat with mass 0.500 kg clings to one end of the stick, and a mouse with mass 0.200 kg clings to the other end. The system is released from rest with the rod horizontal. If the animals can manage to hold on, what are their speeds as the rod swings through a vertical position?
Questions & Answers
QUESTION:
Problem 58P
A wooden rod of negligible mass and length 80.0 cm is pivoted about a horizontal axis through its center. A white rat with mass 0.500 kg clings to one end of the stick, and a mouse with mass 0.200 kg clings to the other end. The system is released from rest with the rod horizontal. If the animals can manage to hold on, what are their speeds as the rod swings through a vertical position?
ANSWER:
Solution 58P
This question can be solved using the law of conservation of energy.
Thus, initial mechanical energy of the system will be equal to the final mechanical energy.
Let us have a look at the following figure to understand the situation better.