A train travels 55 km south along a straight track in 34 minutes. What is the train's average velocity in kilometers per hour?

Answer: v = 96.5 km/h

Explanation: Solve this problem using the following equation:

v = d/t

First convert t in minutes into hours

34 mins x 1 hour / 60 mins

= 0.57 h

Substitute the values

v = 55 km / 0.57 h

= 96.5 km/h