engineering recuitment ECIL GET Mechanical Mock Test 2024 Theory of Machines Balancing Balancing of Multiple Rotating Masses
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.
1
1
2
√2
3
1/√2
4
1/2√2