||'''Book'''|| Advanced Engineering Mathematics ||
 ||'''Author'''|| Erwin Kreyszig ||
 ||'''Edition'''|| 8th Edition ||

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{{{{{{id=1|
# the infinitesimal raise in the water level pushes causes the restoring force. Taking it to be small enough provides the necessary and sufficient condition for a simple harmonic motion.

pi = 3.1415926535897931

r = 0.01 #meter

g = 9.8 #m/s^2

#for y the displacement upwards, and y'' the resultant acceleration downwards,

#pi*2*r^(2)*g*y = - [1 - pi*2*r^(2)*y]*y''

#neglecting the term pi*2*r^(2)*y, we have..

#pi*2*r^(2)*g*y = - y''

omega = sqrt(2*pi)*r*9.8

f = omega/2*pi

print f
///
0.385865443670199
}}}

{{{id=2|

///
}}}
}}}

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 * '''Solution by''': 
   * ganesh, developer, space
   * bhanukiran, student, technical university of Delft
   * saransh, student, sobhit university
   * ujwala, lecturer, aurangabad