Assuming frictionless contacts, the magnitude of external horizontal force 
applied at the lower end for equilibrium of the rod (The rod is uniform and its mass is ' 
') is equal to
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
The F.B.D. of rod is as shown.
For the rod to be in translational equilibrium
For rod to be in rotational equilibrium, net torque on rod about any axis is zero.
Net torque on rod about 
is zero, i.e.,
… (iii)
From Eqs. (ii) and (iii), we get
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