G1,G4 A mass weighing 20 pounds stretches a spring
6 inches. The mass is initially released from rest from
a point 6 inches below the equilibrium position.
(a) Find the position of the mass at the times t =
π/12, π/8, π/6, π/4,
and 9π/32s
(b) What is the velocity of the mass when t = 3π/16s?
In which direction is the mass heading at this instant?
(c) At what times does the mass pass through the
equilibrium position?