Mechanical Engineering > GATE 2022 SET-2 > Rotation
A rigid body in the X-Y plane consists of two point masses (1 kg each) attached to
the ends of two massless rods, each of 1 cm length, as shown in the figure. It rotates
at 30 RPM counter-clockwise about the Z-axis passing through point O. A point
mass of √2 kg, attached to one end of a third massless rod, is used for balancing the
body by attaching the free end of the rod to point O. The length of the third rod
is ________ cm.
Correct : b
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