To confirm my answer wheter is right or wrong

[Sanosuke Sagara]

A mass m at the end of a vertical spring constant k vibrates vertically with simple harmonic motion of amplitude a.Find the expression for the maximum kinetic energy of the mass in terms of m,k and a.


My solution :

[allistair]

i think your maximum kinetic energy should be 1/2*m*v^2 = 1/2*m*w^4*x^2 in stead of 1/2*m*w^2*x^2