A hot solid sphere is rotating about a diameter at an angular velocity
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Answered by
35
⛔⛔⚠️Please make sure your question
A solid sphere is rotating about a
diameter at an angular velocity ω. If it cools
so that the radius reduces to 1
n
of its original
value, its angular velocity becomes
✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔
➡️use angular momentum conservation
I1w1=I2w2
as radius reduces by 1/n , moment of inertia of sphere reduces by 1/n2, so its angular velocity increases by a factor of n2
A solid sphere is rotating about a
diameter at an angular velocity ω. If it cools
so that the radius reduces to 1
n
of its original
value, its angular velocity becomes
✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔✔
➡️use angular momentum conservation
I1w1=I2w2
as radius reduces by 1/n , moment of inertia of sphere reduces by 1/n2, so its angular velocity increases by a factor of n2
Answered by
48
Your questions is incomplete. It's answer is n^2w•
Solution is as follows.....
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