A mass suspended from a spring is oscillating up and down. Consider the following two statements:
(1) At some point during the oscillation, the mass has zero velocity but it is accelerating.
(2) At some point during the oscillation, the mass has zero velocity and zero acceleration.
(a) Both occur at some time during the oscillation.
(b) Neither occurs during the oscillation.
(c) Only (1) occurs.
(d) Only (2) occurs.