A 500.0-g mass is hung from an unstretched spring, and the spring stretches a distance of 0.250 m, where the mass hangs at rest. Define this point as y = 0. It is then pulled down another 8.00 cm, and released.
a. What is the amplitude of the motion?
b. What is the spring constant?
c. What is the maximum velocity the spring reaches during the oscillation, and what is its location at that time?
d. Assuming the mass starts at the positive amplitude at t = 0, what is the position of the mass at t = 2.25 seconds?