# Physics

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Wong is standing on a turntable in class holding a weight in each hand a distance .75 meters from the center of his body. He is originally rotating with an angular frequency w=0.3 rad/s. He pulls the weights in so they are only .25 meters from the axis of rotation. The original moment of inertia of wong, the turntable and the weights is I,initial = 8kgm^2. The final moment of inertia of Wong, the turntable and the weights is I,final= 5kgm^2

What is wong's final angular velocity W,final?

As justin pulls the weights in, the total angular momentum of wong, the turntable, and the weights

increases, decreases, or remains the same?

• Physics -

This is clearly an conservation of angular momentum problem.

You are not going to learn anything if yuou expect us to do all the work for you.

• Physics -

ok formula L=Iw i know I=5kgm^2 and i am finding w. How would i go about finding L give me a hint.

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