When a spinning system contracts in the absence of an external torque, its rotational speed increases...
When a spinning system contracts in the absence of an external torque, its rotational speed increases and its angular momentum
1. decreases
2. remains unchanged
3. may increase or decrease
4. increases
Homework Answers
angular momentum is conserved as no external torque ,so Iw = constant as I decreases w (rotational speed increases and angular momentum remains the same .
option 2. remains unchanged .
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