Walt ran 5 kilometers in 25 minutes, going eastward. What was his average velocity?

Velocity (v) is a vector quantity that includes the magnitude and the direction. The magnitude of the quantity is the quotient obtained in dividing the distance (d) by the time (t).

v = d / t

Substituting the known values,

v = (5 km) / (25 minutes) = (5000 m) / (1500 s) = 3.33 m/s

Therefore, Walt's velocity is 3.33 m/s due east.