Find the Kinetic Energy (In Terms of Planck's Constant) of a Football

Multiple Choice

Find the kinetic energy (in terms of Planck's constant) of a football (m = 1 kg) confined to a one-dimensional box that is 25 cm wide if the baseball can be treated as a wave in the ground state.

A) 3 h2
B) 2 h2
C) h2
D) 4h2
E) 0.5 h2