If the potential energy of the particle is given by: U = x2-8x+16. It starts from rest from x=0. What will be its maximum speed during SHM? Assume the mass of the particle to be 1kg.

A body with simple harmonic motion (S.H.M.) has potential energy from its displacement from the mean position. From its velocity, it also possesses kinetic energy. During the oscillatory motion, these energies vary, but their sum remains constant, provided no dissipative forces are present.