A train moves 320m due east in 16s. Which statement about its average speed vavg and the magnitude of its average velocity ∣vˉ∣ is correct?
(a) vavg>∣vˉ∣
(b) vavg and ∣vˉ∣ cannot be compared without specifying direction
(c) vavg=∣vˉ∣
(d) vavg<∣vˉ∣