- #1
Adesh
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I was talking to someone about the equilibrium of fluids and we reached at some stage where we had to prove that in an external field the translational forces add to zero along with moments (torques) should also add to zero. The first one was quite easy but during the discussion of second condition he (a respectable man) said
if you take an isolated object it can only rotate about its centre of mass.
I want to know why (I couldn’t ask him because we had to depart just after that due to something). Why would an isolated object can’t rotate about the axis passing through, say, at its right most point?
I can provide full discussion if you need it.
if you take an isolated object it can only rotate about its centre of mass.
I want to know why (I couldn’t ask him because we had to depart just after that due to something). Why would an isolated object can’t rotate about the axis passing through, say, at its right most point?
I can provide full discussion if you need it.
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