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Rate of rotation using conservation of angular momentum

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A diver can change her rate of rotation in the aair by "tucking" her head in and bending her knees. Let's assume that when she is stretched out straight she is rotating at 1 revolution per second. Now she goes into the "tuck and bend", effectively shortening the length of her body by half. What will her rate of rotation be now?

a.5Hz
b.4Hz

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Solution Summary

The solution calculates the rate of rotation using conservation of angular momentum.

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From the conservation of angular momentum
I1w 1= I2 w 2

The moment ...

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