<p>A diver comes off a board with arms straight up and legs straight down, givin

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<p>A diver comes off a board with arms straight up and legs straight down, giving her a moment of inertia about her rotation axis of <img src="http://session.masteringphysics.com/render?tex=18+%7B%5Crm%7B+kg%7D%7D+%5Ccdot+%7B%5Crm%7Bm%7D%7D%5E2" alt="18 { m{ kg}} cdot { m{m}}^2" align="middle" />. She then tucks into a small ball, decreasing this moment of inertia to <img src="http://session.masteringphysics.com/render?tex=3.6+%7B%5Crm%7B+kg%7D%7D+%5Ccdot+%7B%5Crm%7Bm%7D%7D%5E2" alt="3.6 { m{ kg}} cdot { m{m}}^2" align="middle" />. While tucked, she makes two complete revolutions in <span>1.2</span>&#160;<img src="http://session.masteringphysics.com/render?units=s" alt="s" align="middle" />.</p>
<p>If she hadn't tucked at all, how many revolutions would she have made in the <span>1.5</span>&#160;<img src="http://session.masteringphysics.com/render?units=s" alt="s" align="middle" /> from board to water?</p>

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cant understand a thing in ur question

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