NEETSHMHard
Question
An elastic string of length l supports a heavy particle of mass m and the system is in equilibrium with elongation produced being e as shown in figure. The particle is now pulled down below the equilibrium position through a distance d (<e) and released. The angular frequency and maximum amplitude for SHM is
Options
A.
, e
, e B.
, 2e
, 2e C.
, d
, d D.
, 2d
, 2dSolution
ω = 
and Ke = mg (at mean position)
or ω =
and Ke = mg (at mean position) or ω =
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