Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A person of mass 
is, sitting on a swing of length 
and swinging with an angular amplitude 
. If the person stands up when the swing passes through its lowest point, the work done by him, assuming that his centre of mass moves by a distance 
( 
, is close to :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Angular momentum conservation
Now, 
By, Binomial approximation
Here, 
maximum velocity 
So, 
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