question_answer

A woman walks on a straight road from her home to a market 3 km away with a speed of 5 km/h. Finding the marker closed, she instantaneously turns and walk with a speed of 6km/h. The magnitude of average velocity is

A)  5.50 km/h                          

B)  5.40 km/h

C)  2.73 km/h          

D)  zero