When slightly different weights are placed on the two pans of a beam balance,the beam balance comes to rest at an angle with the horizontal.The beam is supported at a single point P by a pivot
(A)The net torque about P due to the two weights is non-zero at the equilibrium position
(B)The whole system does not continue to rotate about P because it has a large moment of inertia
(C)The centre of mass of the system lies below P
(D)The centre of mass of the system lies above P
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2 Answers
62A will be true..
C will also be true if the beam is assumed to be massless or have its CM below the point P and if the two beams are equal in length.
