A 1-kilogram mass is attached to a spring whose constant is 16 kg/second/second, and the entire

system is then submerged in a liquid that imparts a damping force numerically equal to 10 times the
instantaneous velocity. Determine the equations of motion if
(a) the mass is initially released from rest from a point 1 meter below the equilibrium position, or
(b) the mass is initially released from a point 1 meter below the equilibrium position with an upward
velocity of 12 m/s.

A 1-kilogram mass is attached to a spring whose constant is 16 kg/second/second, and the entire