Questions 15 and 16 A horizontal spring-mass system oscillating about the origin with an amplitude A is illustrated in the figure below. Extended Position Equilibrium =A Compressed Position 15. When an object on a spring is at its equilibrium position, what is its velocity and acceleration? Velocity Acceleration A. minimum minimum B. maximum minimum C. minimum maximum D. maximum maximum 16. When an object on a spring is at its maximum displacement position, what is its kinetic and potential energies? Kinetic energy Potential energy A minimum minimum B. maximum minimum C. minimum maximum D. maximum maximum