A body having moment of inertia of 30 kg m2 is rotating at 210 RPM and – McqOptions

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1.	A body having moment of inertia of 30 kg m² is rotating at 210 RPM and mashes with another body at rest having M.I. of 40 kg m². The resultant speed after meshing will be
A.	90 RPM
B.	100 RPM
C.	80 RPM
D.	none of the mentioned
Answer» B. 100 RPM

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