NEETSHMMedium

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
B. , 2e
C., d
D., 2d

Solution

ω = and Ke = mg (at mean position)
or ω =

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