A particle is attached to an end of a rigid rod. The other end of the rod is hinged and the rod rotates always remaining horizontal. It ’ s angular speed is increasing at constant rate. The mass of the particle is 'm'. The force exerted by the rod on the particle is 
, then:
mg
and horizontal plane decreases.
and the rod decreases.
Text Solution
Verified by ExpertsCHECK THE SOLUTION.
(a, c, d):
F = 
> mg
(as 
= constant ∴ F t = constant)
Now when the angular speed of the rod is
increasing at const. rate the resultant force
will be more inclined towards 
.
Hence the angle between 
and horizontal plane decreases so as with the rod due to increases
in
f = m ω 2 r only.
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