A person of mass M 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 center of mass moves by a distance 
is close to:
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2019
From angular momentum conservation
Now
Since 
From SHM
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