The final angular velocity of Dhabitah is 16 rad/s.
Conservation of angular momentum
The principle of conservation of angular momentum states the total angular momentum of an isolated system is constant.
The final angular velocity
The final angular velocity of Dhabitah is calculated by applying the principle of conservation of angular momentum as follows;
[tex]I_1 \omega _1 = I_2 \omega _2\\\\(Mr_1^2 )\omega _1 = (Mr_2^2) \omega_2\\\\r_1^2 \omega_1 = r_2^2 \omega_2 \\\\\omega _2 = \frac{r_1^2\omega _1}{r_2^2}\\\\ \omega _2 = \frac{0.5^2 \times 4}{0.25^2} \\\\\omega_2 = 16 \ rad/s[/tex]
The diver applied the conservation of angular momentum to perform the somersault because he understood that the initial angular momentum is equal to final angular momentum.
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