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**angular velocity???!!!**

## Homework Statement

Hello, I am a 1st yr biomechanics student and I am having a lot of problems figuring this stuff out and I have an exam coming up and I'm kinda panicing!!! lol! ok here is the exact problem:

"A 60kg diver is positioned so that his radius of gyration is 0.5m as he leaves the board with an angular velocity of 14rad/sec. What is the diver's angular velocity when he assumes a 'tuck' position, altering his radius of gyration to 0.3m?"

My conundrum comes because the formulas we were given all include a 'change in time' to be used in the equation. Maybe (yes, definately!) I am missing something here so can someone please educate me as to how I would go about solving this problem and the formula that I am supposed to use.

Thanks very much in advance,

- One confused young man (a.k.a. Jay)