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## Homework Statement

A student is running at a speed of 3.5 m/s and grabs a long rope that is hanging vertically from the ceiling. How high can the student swing?

## Homework Equations

For what we're learning right now, we should be using:

PEi + KEi = PEf + KEf

## The Attempt at a Solution

I don't even know where to start. What possible formula can help me find this answer with only the initial velocity?

PS. The answer is provided, but I am trying to figure out just HOW to do this. Thanks to somebody who can explain or guide in the right path...