A 156 g object is attached to a spring and oscillates on a horizontal air track. The object is stretched a distance 15 cm and released. The sensor measured a maximum speed of 3.84 m/s. [Answer in 3 significant figures] 3) What is the spring constant value? b At what position(s) will the object have a speed 1/3 that of the maximum speed? Take x O at the equilibrium C) At t = 0, the object is moving at 1/3vmax towards the equilibrium with the spring compressed. Using > (t) = A cos(wt + $), write a complete expression to describe the motion of the object