Write the Word or Phrase That Best Completes Each Statement

Write the word or phrase that best completes each statement or answers the question.
Solve the problem.
-An object of mass m attached to a coiled spring with damping factor b is pulled down a distance a from its rest position
and then released. Assume the positive direction of the motion is up and the period of the first oscillation is T. Write an
equation that relates the distance d of the object from its rest position after t seconds. $$\mathrm { m } = 15 \mathrm {~g} ; \mathrm { a } = 11 \mathrm {~cm} ; \mathrm { b } = 0.7 \mathrm {~g} / \mathrm { sec } ; \mathrm { T } = 3 \mathrm { sec }$$