April moves from a position that is 5 m north of her front door to a new position that is 3 m south of her front door. If this movement takes her 4 seconds what is her velocity?

Velocity =

(displacement) / (time for the displacement), in the direction of the displacement.

Displacement = 8 m south

Time for the displacement = 4 seconds

Direction of the displacement = south

Velocity (8 m south) / (4 seconds), to the south

Velocity = 2 m/s, toward the south