An object is attached to a coiled spring. The object begins at its rest position at t = 0 seconds. It is then propelled downward. Write an equation for the distance.

a) s(t) = -k/m cos(ωt)
b) s(t) = -k/m sin(ωt)
c) s(t) = k/m cos(ωt)
d) s(t) = k/m sin(ωt)