Answer to Question #73808 in Mechanics | Relativity for Ahmed Raza
Where, L = angular momentum ; I = moment of Inertia ; ω = angular speed
Now when the gymnast sitting on a stool with his arms stretched lower the moment of inertia will decrease. Again we know total angular momentum is constant.
So, as per equation (1), L is constant, I (moment of inertia) will decrease then ω must be increased.
Answer: Angular speed will increased.
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