Figure Q14.3 shows the position-versus-time graph of a particle in SHM. a. At what time or times is.

Figure Q14.3 shows the position-versus-time graph of a particle in SHM. a. At what time or times is the particle moving right at maximum speed? b. At what time or times is the particle moving left at maximum speed? c. At what time or times is the particle instantaneously at rest?