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:A
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