S= total distance / total time
Average Speed = 50.0 km / 2.5 hr.
Average Speed= 20 km
Answer : 20 km.
Evolution probably because that's how everything develops
Power has several definitions:
1) the ability to do something or act in a particular way, especially as a faculty or quality.
2) the capacity or ability to direct or influence the behavior of others or the course of events
3) supply (a device) with mechanical or electrical energy.
4) move or travel with great speed or force.
