Published by:
CGP EDU Academic Team
Published on: August 22, 2026
A uniform rod of length ' 
' is pivoted at one of its ends on a vertical shaft of negligible radius. When the shaft rotates at angular speed 
the rod makes an angle 
with it (see figure). To find 
equate the rate of change of angular momentum (direction going into the paper) 
about the centre of mass (CM) to the torque provided by the horizontal and vertical forces 
and 
about the 
. The value of 
is then such that:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
about 
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