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

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

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )