Two masses m and  are connected at the two ends of a massless rigid rod of length ll.  The rod is suspended by a thin wire of torsional constant k at the centre of mass of the rod-mass system (sec figure). Because of torsional constant k, the restoring torque is =k  for angular displacement 0.  If the rod is rotated by 0 and released, the tension in it when it passes through its mean position will be: a. b. c. d.

Question ID - 50047 :- Two masses m and  are connected at the two ends of a massless rigid rod of length ll.  The rod is suspended by a thin wire of torsional constant k at the centre of mass of the rod-mass system (sec figure). Because of torsional constant k, the restoring torque is =k  for angular displacement 0.  If the rod is rotated by 0 and released, the tension in it when it passes through its mean position will be: a. b. c. d.

3537

=

=

Ω= θ0=average velocity

T=mΩ2r1

T=m Ω2

=m2

=m

=

I= l2= l2

=

r1=

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