Two particles of masses m1 and m2 are joined by a massless spring of natural length L and force constant k. Initially, m2 is resting on a table and m1 is held vertically above m2 at a height L at time t = 0, m1 is projected vertically upward with initial velocity v0. Find the positions of the two masses at any subsequent time t ( before either mass returns to the table) and describe the motion.
