The problem involves two skaters on frictionless ice, where one skater pushes the other, leading to questions about their final speeds based on the conservation of momentum. The scenario includes two parts: one where both skaters start at rest and another where they have an initial velocity.
The discussion is ongoing, with participants exploring different interpretations of the problem and questioning assumptions about the forces involved. Some guidance on using conservation of momentum has been provided, but no consensus has been reached on the final approach or calculations.
There is a mention of gravity and acceleration, which some participants suggest may not be relevant to the problem setup on horizontal ice. The initial conditions for both parts of the problem are also being clarified.
runningirl said:
tiny-tim said:hi runningirl!
nooo … force doesn't come into it
use conservation of momentum (for both parts) …
in collisions (or "reverse collisions" like this), momentum (also angular momentum, btw) is always conserved
runningirl said:
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