Another spring whose constant is 20 N/m is suspended from the same rigid support of the spring of the previous problem but parallel to that spring-mass system. A mass of 20 kg is attached to the second spring and both masses are released from the equilibrium position with an upward velocity of 10 m/s.

(a) Which mass exhibits the greater amplitude of motion?
(b) Which mass is moving faster at t ?/4 seconds? at t = ?/2 seconds?
(c) At what times are the two masses in the same position? Where are the masses at these times? In which directions are they moving?