Answer:
A ) Adding direction.
Step-by-step explanation:
1) Speed = Distance Time.
2) Speed = s t.
3) 1 m 1 s × 1 km 1000 m × 3600 s 1 h = 3600 m · km · s 1000 s · m · h = 3.6 km 1 h.
4) Speed = Distance Time.
5) Velocity = Displacement Time in a direction.
