Amass 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 x of the mass at the times t-m/12, m /8 , n /6, m/4, and 9m/32 s. (use g 32 ft/s for the acceleration due to gravity.) -0.375 ft x x(π/ 12) 1 ft x(/8) 3 ft x(t/6) 0,75 ft x(/4) ft x(9m/32) (b) what is the velocity of the mass whent 3m/16 s 6 ft/s in which direction is the mass heading at this instant? odownward o upward (c) at what times does the mass pass through the equilibrium position?