How Does the Position of the Man Change as He Walks to the Edge of the Boat?

AI Thread Summary
The discussion focuses on the challenge of determining the man's new position after he walks to the edge of a boat, considering the boat's movement. The key point is that as the man moves, the boat shifts due to the conservation of momentum, complicating the calculation of his final location. The center of mass remains stationary if external forces are negligible, which is the case here. The interaction between the man and the boat is classified as an internal force, while water resistance is considered negligible. Understanding these dynamics is crucial for solving the problem accurately.
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Ok this one is messing me up. I already got number one (1.28). The question now is:
After walking to the right edge of the boat, how far has the man moved form his original location (what is his new location)?

I thought it would just be simple-the distance across the boat. But apparently as the man moves, so does the boat. This is confusing me. How do I begin to solve this one?
 
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The centre of mass stays stationary if the resultant of the external forces is zero. Internal forces do not change the position of the CM. Interaction between the man and the boat is internal force, friction and drag between water and boat would be external forces but they are negligible according to the text.

ehild
 

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