Physics: How do you know if angular momentum is conserved?

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How do you know if angular momentum is conserved?

What expression are easy to verify?

Nov 20th, 2015

Thank you for the opportunity to help you with your question!

Thank you for the opportunity to help you with your question!

if torque is constant anguluar momentum isconserved.

means τ = o , then dL/dt = o

external torque acring on a rotating body is constant thenthere is no change in angular momentum which means it isconserved.

τ = dL/dt = d rmv/dt


Please let me know if you need any clarification. I'm always happy to answer your questions.Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 20th, 2015

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